From fca56a8d2c6f803aeec51167dd4dd22529f8bdd7 Mon Sep 17 00:00:00 2001
From: Michael Goulet <michael@errs.io>
Date: Fri, 16 Jun 2023 05:59:42 +0000
Subject: [PATCH] s/Clause/ClauseKind

---
 .../src/diagnostics/conflict_errors.rs        |   4 +-
 .../src/diagnostics/region_name.rs            |   4 +-
 .../src/region_infer/opaque_types.rs          |   5 +-
 .../src/type_check/canonical.rs               |  12 +-
 compiler/rustc_borrowck/src/type_check/mod.rs |  13 +-
 .../rustc_hir_analysis/src/astconv/errors.rs  |   4 +-
 .../rustc_hir_analysis/src/astconv/mod.rs     |  20 +--
 compiler/rustc_hir_analysis/src/bounds.rs     |  16 ++-
 .../rustc_hir_analysis/src/check/check.rs     |   2 +-
 .../src/check/compare_impl_item.rs            |   2 +-
 compiler/rustc_hir_analysis/src/check/mod.rs  |   4 +-
 .../rustc_hir_analysis/src/check/wfcheck.rs   |  20 +--
 .../src/coherence/builtin.rs                  |   2 +-
 .../src/collect/item_bounds.rs                |   8 +-
 .../src/collect/predicates_of.rs              |  32 +++--
 .../src/collect/resolve_bound_vars.rs         |   2 +-
 .../src/constrained_generic_params.rs         |   2 +-
 .../rustc_hir_analysis/src/hir_wf_check.rs    |   2 +-
 .../src/impl_wf_check/min_specialization.rs   |  26 ++--
 .../src/outlives/explicit.rs                  |  19 ++-
 .../rustc_hir_analysis/src/outlives/mod.rs    |  10 +-
 .../rustc_hir_analysis/src/variance/mod.rs    |   6 +-
 compiler/rustc_hir_typeck/src/_match.rs       |  10 +-
 compiler/rustc_hir_typeck/src/closure.rs      |   8 +-
 compiler/rustc_hir_typeck/src/coercion.rs     |   4 +-
 compiler/rustc_hir_typeck/src/expr.rs         |   2 +-
 .../rustc_hir_typeck/src/fn_ctxt/_impl.rs     |  22 ++--
 .../src/fn_ctxt/adjust_fulfillment_errors.rs  |  12 +-
 .../rustc_hir_typeck/src/fn_ctxt/checks.rs    |   2 +-
 compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs  |   2 +-
 .../src/generator_interior/mod.rs             |   2 +-
 compiler/rustc_hir_typeck/src/inherited.rs    |   6 +-
 .../rustc_hir_typeck/src/method/confirm.rs    |   2 +-
 compiler/rustc_hir_typeck/src/method/mod.rs   |   4 +-
 compiler/rustc_hir_typeck/src/method/probe.rs |  14 +-
 .../rustc_hir_typeck/src/method/suggest.rs    |  34 ++---
 .../src/infer/canonical/query_response.rs     |  18 +--
 compiler/rustc_infer/src/infer/combine.rs     |   4 +-
 .../src/infer/error_reporting/mod.rs          |   6 +-
 .../rustc_infer/src/infer/opaque_types.rs     |   2 +-
 .../rustc_infer/src/infer/outlives/mod.rs     |  14 +-
 compiler/rustc_infer/src/infer/projection.rs  |   9 +-
 compiler/rustc_infer/src/traits/mod.rs        |   4 +-
 compiler/rustc_infer/src/traits/util.rs       |  20 +--
 compiler/rustc_lint/src/builtin.rs            |  26 ++--
 .../src/opaque_hidden_inferred_bound.rs       |   4 +-
 compiler/rustc_lint/src/traits.rs             |   4 +-
 compiler/rustc_lint/src/unused.rs             |   2 +-
 compiler/rustc_metadata/src/rmeta/mod.rs      |   2 +-
 compiler/rustc_middle/src/query/erase.rs      |   2 +-
 compiler/rustc_middle/src/query/mod.rs        |   2 +-
 .../rustc_middle/src/query/on_disk_cache.rs   |   2 +-
 compiler/rustc_middle/src/ty/codec.rs         |   4 +-
 compiler/rustc_middle/src/ty/context.rs       |   4 +-
 compiler/rustc_middle/src/ty/flags.rs         |  17 ++-
 compiler/rustc_middle/src/ty/mod.rs           | 121 +++++++++---------
 compiler/rustc_middle/src/ty/parameterized.rs |   2 +-
 compiler/rustc_middle/src/ty/print/pretty.rs  |  20 +--
 .../rustc_middle/src/ty/structural_impls.rs   |  16 +--
 compiler/rustc_middle/src/ty/util.rs          |   2 +-
 .../src/function_item_references.rs           |   2 +-
 compiler/rustc_mir_transform/src/generator.rs |   2 +-
 compiler/rustc_privacy/src/lib.rs             |  20 +--
 .../src/solve/assembly/mod.rs                 |   8 +-
 .../src/solve/eval_ctxt.rs                    |  14 +-
 .../src/solve/fulfill.rs                      |   2 +-
 .../src/solve/project_goals.rs                |   2 +-
 .../src/solve/trait_goals.rs                  |   2 +-
 .../src/traits/auto_trait.rs                  |  18 +--
 .../src/traits/const_evaluatable.rs           |   2 +-
 .../src/traits/error_reporting/ambiguity.rs   |   2 +-
 .../src/traits/error_reporting/mod.rs         |  36 +++---
 .../src/traits/error_reporting/suggestions.rs |  26 ++--
 .../src/traits/fulfill.rs                     |  28 ++--
 .../rustc_trait_selection/src/traits/mod.rs   |   2 +-
 .../src/traits/object_safety.rs               |  30 ++---
 .../src/traits/project.rs                     |   2 +-
 .../src/traits/query/evaluate_obligation.rs   |   2 +-
 .../traits/query/type_op/ascribe_user_type.rs |   7 +-
 .../query/type_op/implied_outlives_bounds.rs  |  16 +--
 .../traits/query/type_op/prove_predicate.rs   |   2 +-
 .../src/traits/select/candidate_assembly.rs   |   4 +-
 .../src/traits/select/mod.rs                  |  16 +--
 .../src/traits/specialize/mod.rs              |   3 +-
 .../rustc_trait_selection/src/traits/wf.rs    |  57 +++++----
 compiler/rustc_traits/src/chalk/lowering.rs   |  56 ++++----
 .../src/normalize_erasing_regions.rs          |  14 +-
 src/librustdoc/clean/auto_trait.rs            |   6 +-
 src/librustdoc/clean/mod.rs                   |  31 +++--
 src/librustdoc/clean/simplify.rs              |   4 +-
 .../clippy/clippy_lints/src/dereference.rs    |   8 +-
 src/tools/clippy/clippy_lints/src/derive.rs   |   6 +-
 .../clippy_lints/src/future_not_send.rs       |   4 +-
 .../src/methods/needless_collect.rs           |   4 +-
 .../src/methods/unnecessary_to_owned.rs       |   8 +-
 .../src/needless_pass_by_value.rs             |   2 +-
 src/tools/clippy/clippy_lints/src/ptr.rs      |   4 +-
 .../src/unit_return_expecting_ord.rs          |   6 +-
 .../clippy/clippy_utils/src/eager_or_lazy.rs  |   2 +-
 .../clippy_utils/src/qualify_min_const_fn.rs  |  14 +-
 src/tools/clippy/clippy_utils/src/ty.rs       |  16 +--
 101 files changed, 592 insertions(+), 544 deletions(-)

diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs
index 15d73ed732f..9c1c111f7f5 100644
--- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs
+++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs
@@ -678,7 +678,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
 
         // Find out if the predicates show that the type is a Fn or FnMut
         let find_fn_kind_from_did = |(pred, _): (ty::Predicate<'tcx>, _)| {
-            if let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) = pred.kind().skip_binder()
+            if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) = pred.kind().skip_binder()
                 && pred.self_ty() == ty
             {
                 if Some(pred.def_id()) == tcx.lang_items().fn_trait() {
@@ -775,7 +775,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
         let predicates: Result<Vec<_>, _> = errors
             .into_iter()
             .map(|err| match err.obligation.predicate.kind().skip_binder() {
-                PredicateKind::Clause(ty::Clause::Trait(predicate)) => {
+                PredicateKind::Clause(ty::ClauseKind::Trait(predicate)) => {
                     match predicate.self_ty().kind() {
                         ty::Param(param_ty) => Ok((
                             generics.type_param(param_ty, tcx),
diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs
index f38e1605fa5..55c9864af8c 100644
--- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs
+++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs
@@ -939,8 +939,8 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
             {
                 predicates.iter().any(|pred| {
                     match pred.kind().skip_binder() {
-                        ty::PredicateKind::Clause(ty::Clause::Trait(data)) if data.self_ty() == ty => {}
-                        ty::PredicateKind::Clause(ty::Clause::Projection(data)) if data.projection_ty.self_ty() == ty => {}
+                        ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) if data.self_ty() == ty => {}
+                        ty::PredicateKind::Clause(ty::ClauseKind::Projection(data)) if data.projection_ty.self_ty() == ty => {}
                         _ => return false,
                     }
                     tcx.any_free_region_meets(pred, |r| {
diff --git a/compiler/rustc_borrowck/src/region_infer/opaque_types.rs b/compiler/rustc_borrowck/src/region_infer/opaque_types.rs
index 6ca702cfdfc..4a872eb251c 100644
--- a/compiler/rustc_borrowck/src/region_infer/opaque_types.rs
+++ b/compiler/rustc_borrowck/src/region_infer/opaque_types.rs
@@ -330,8 +330,9 @@ fn check_opaque_type_well_formed<'tcx>(
     // Require the hidden type to be well-formed with only the generics of the opaque type.
     // Defining use functions may have more bounds than the opaque type, which is ok, as long as the
     // hidden type is well formed even without those bounds.
-    let predicate =
-        ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(definition_ty.into())));
+    let predicate = ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(
+        definition_ty.into(),
+    )));
     ocx.register_obligation(Obligation::misc(tcx, definition_span, def_id, param_env, predicate));
 
     // Check that all obligations are satisfied by the implementation's
diff --git a/compiler/rustc_borrowck/src/type_check/canonical.rs b/compiler/rustc_borrowck/src/type_check/canonical.rs
index f527eee7bda..c19fbf20ca5 100644
--- a/compiler/rustc_borrowck/src/type_check/canonical.rs
+++ b/compiler/rustc_borrowck/src/type_check/canonical.rs
@@ -89,11 +89,13 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
         category: ConstraintCategory<'tcx>,
     ) {
         self.prove_predicate(
-            ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate {
-                trait_ref,
-                constness: ty::BoundConstness::NotConst,
-                polarity: ty::ImplPolarity::Positive,
-            }))),
+            ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::Trait(
+                ty::TraitPredicate {
+                    trait_ref,
+                    constness: ty::BoundConstness::NotConst,
+                    polarity: ty::ImplPolarity::Positive,
+                },
+            ))),
             locations,
             category,
         );
diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs
index 33f75437478..4dbd3b8b485 100644
--- a/compiler/rustc_borrowck/src/type_check/mod.rs
+++ b/compiler/rustc_borrowck/src/type_check/mod.rs
@@ -1420,7 +1420,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
                 // See #91068 for an example.
                 self.prove_predicates(
                     sig.inputs_and_output.iter().map(|ty| {
-                        ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(
+                        ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(
                             ty.into(),
                         )))
                     }),
@@ -1852,7 +1852,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
 
                 let array_ty = rvalue.ty(body.local_decls(), tcx);
                 self.prove_predicate(
-                    ty::PredicateKind::Clause(ty::Clause::WellFormed(array_ty.into())),
+                    ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(array_ty.into())),
                     Locations::Single(location),
                     ConstraintCategory::Boring,
                 );
@@ -2025,10 +2025,11 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
                             ConstraintCategory::Cast,
                         );
 
-                        let outlives_predicate =
-                            tcx.mk_predicate(Binder::dummy(ty::PredicateKind::Clause(
-                                ty::Clause::TypeOutlives(ty::OutlivesPredicate(self_ty, *region)),
-                            )));
+                        let outlives_predicate = tcx.mk_predicate(Binder::dummy(
+                            ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(
+                                ty::OutlivesPredicate(self_ty, *region),
+                            )),
+                        ));
                         self.prove_predicate(
                             outlives_predicate,
                             location.to_locations(),
diff --git a/compiler/rustc_hir_analysis/src/astconv/errors.rs b/compiler/rustc_hir_analysis/src/astconv/errors.rs
index 7b922f5d525..7f060af2245 100644
--- a/compiler/rustc_hir_analysis/src/astconv/errors.rs
+++ b/compiler/rustc_hir_analysis/src/astconv/errors.rs
@@ -343,7 +343,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
         let format_pred = |pred: ty::Predicate<'tcx>| {
             let bound_predicate = pred.kind();
             match bound_predicate.skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Projection(pred)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(pred)) => {
                     let pred = bound_predicate.rebind(pred);
                     // `<Foo as Iterator>::Item = String`.
                     let projection_ty = pred.skip_binder().projection_ty;
@@ -364,7 +364,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
                     bound_span_label(projection_ty.self_ty(), &obligation, &quiet);
                     Some((obligation, projection_ty.self_ty()))
                 }
-                ty::PredicateKind::Clause(ty::Clause::Trait(poly_trait_ref)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(poly_trait_ref)) => {
                     let p = poly_trait_ref.trait_ref;
                     let self_ty = p.self_ty();
                     let path = p.print_only_trait_path();
diff --git a/compiler/rustc_hir_analysis/src/astconv/mod.rs b/compiler/rustc_hir_analysis/src/astconv/mod.rs
index 621569ab321..14e3ceadb10 100644
--- a/compiler/rustc_hir_analysis/src/astconv/mod.rs
+++ b/compiler/rustc_hir_analysis/src/astconv/mod.rs
@@ -950,7 +950,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
             let bound_pred = pred.kind();
             match bound_pred.skip_binder() {
                 ty::PredicateKind::Clause(clause) => match clause {
-                    ty::Clause::Trait(trait_pred) => {
+                    ty::ClauseKind::Trait(trait_pred) => {
                         assert_eq!(trait_pred.polarity, ty::ImplPolarity::Positive);
                         trait_bounds.push((
                             bound_pred.rebind(trait_pred.trait_ref),
@@ -958,16 +958,18 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
                             trait_pred.constness,
                         ));
                     }
-                    ty::Clause::Projection(proj) => {
+                    ty::ClauseKind::Projection(proj) => {
                         projection_bounds.push((bound_pred.rebind(proj), span));
                     }
-                    ty::Clause::TypeOutlives(_) => {
+                    ty::ClauseKind::TypeOutlives(_) => {
                         // Do nothing, we deal with regions separately
                     }
-                    ty::Clause::RegionOutlives(_)
-                    | ty::Clause::ConstArgHasType(..)
-                    | ty::Clause::WellFormed(_)
-                    | ty::Clause::ConstEvaluatable(_) => bug!(),
+                    ty::ClauseKind::RegionOutlives(_)
+                    | ty::ClauseKind::ConstArgHasType(..)
+                    | ty::ClauseKind::WellFormed(_)
+                    | ty::ClauseKind::ConstEvaluatable(_) => {
+                        bug!()
+                    }
                 },
                 ty::PredicateKind::AliasRelate(..)
                 | ty::PredicateKind::ObjectSafe(_)
@@ -1064,7 +1066,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
 
                 let bound_predicate = pred.kind();
                 match bound_predicate.skip_binder() {
-                    ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => {
                         let pred = bound_predicate.rebind(pred);
                         associated_types.entry(span).or_default().extend(
                             tcx.associated_items(pred.def_id())
@@ -1074,7 +1076,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
                                 .map(|item| item.def_id),
                         );
                     }
-                    ty::PredicateKind::Clause(ty::Clause::Projection(pred)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::Projection(pred)) => {
                         let pred = bound_predicate.rebind(pred);
                         // A `Self` within the original bound will be substituted with a
                         // `trait_object_dummy_self`, so check for that.
diff --git a/compiler/rustc_hir_analysis/src/bounds.rs b/compiler/rustc_hir_analysis/src/bounds.rs
index 8a318e984d7..6bd498e142d 100644
--- a/compiler/rustc_hir_analysis/src/bounds.rs
+++ b/compiler/rustc_hir_analysis/src/bounds.rs
@@ -24,7 +24,7 @@ use rustc_span::Span;
 /// include the self type (e.g., `trait_bounds`) but in others we do not
 #[derive(Default, PartialEq, Eq, Clone, Debug)]
 pub struct Bounds<'tcx> {
-    pub predicates: Vec<(Binder<'tcx, ty::Clause<'tcx>>, Span)>,
+    pub predicates: Vec<(Binder<'tcx, ty::ClauseKind<'tcx>>, Span)>,
 }
 
 impl<'tcx> Bounds<'tcx> {
@@ -34,7 +34,7 @@ impl<'tcx> Bounds<'tcx> {
         region: ty::PolyTypeOutlivesPredicate<'tcx>,
         span: Span,
     ) {
-        self.predicates.push((region.map_bound(|p| ty::Clause::TypeOutlives(p)), span));
+        self.predicates.push((region.map_bound(|p| ty::ClauseKind::TypeOutlives(p)), span));
     }
 
     pub fn push_trait_bound(
@@ -47,7 +47,7 @@ impl<'tcx> Bounds<'tcx> {
     ) {
         self.predicates.push((
             trait_ref.map_bound(|trait_ref| {
-                ty::Clause::Trait(ty::TraitPredicate { trait_ref, constness, polarity })
+                ty::ClauseKind::Trait(ty::TraitPredicate { trait_ref, constness, polarity })
             }),
             span,
         ));
@@ -59,7 +59,7 @@ impl<'tcx> Bounds<'tcx> {
         projection: ty::PolyProjectionPredicate<'tcx>,
         span: Span,
     ) {
-        self.predicates.push((projection.map_bound(|proj| ty::Clause::Projection(proj)), span));
+        self.predicates.push((projection.map_bound(|proj| ty::ClauseKind::Projection(proj)), span));
     }
 
     pub fn push_sized(&mut self, tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, span: Span) {
@@ -69,13 +69,17 @@ impl<'tcx> Bounds<'tcx> {
         self.predicates.insert(
             0,
             (
-                ty::Binder::dummy(ty::Clause::Trait(trait_ref.without_const().to_predicate(tcx))),
+                ty::Binder::dummy(ty::ClauseKind::Trait(
+                    trait_ref.without_const().to_predicate(tcx),
+                )),
                 span,
             ),
         );
     }
 
-    pub fn predicates(&self) -> impl Iterator<Item = (Binder<'tcx, ty::Clause<'tcx>>, Span)> + '_ {
+    pub fn predicates(
+        &self,
+    ) -> impl Iterator<Item = (Binder<'tcx, ty::ClauseKind<'tcx>>, Span)> + '_ {
         self.predicates.iter().cloned()
     }
 }
diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs
index c09734d6e69..22aa3c7ff08 100644
--- a/compiler/rustc_hir_analysis/src/check/check.rs
+++ b/compiler/rustc_hir_analysis/src/check/check.rs
@@ -440,7 +440,7 @@ fn check_opaque_meets_bounds<'tcx>(
     // Defining use functions may have more bounds than the opaque type, which is ok, as long as the
     // hidden type is well formed even without those bounds.
     let predicate =
-        ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(hidden_ty.into())));
+        ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(hidden_ty.into())));
     ocx.register_obligation(Obligation::new(tcx, misc_cause, param_env, predicate));
 
     // Check that all obligations are satisfied by the implementation's
diff --git a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs
index 838b212ef87..b2ba566f60c 100644
--- a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs
+++ b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs
@@ -321,7 +321,7 @@ fn compare_method_predicate_entailment<'tcx>(
             infcx.tcx,
             ObligationCause::dummy(),
             param_env,
-            ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(
+            ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(
                 unnormalized_impl_fty.into(),
             ))),
         ));
diff --git a/compiler/rustc_hir_analysis/src/check/mod.rs b/compiler/rustc_hir_analysis/src/check/mod.rs
index c9e74896ac0..40feb675758 100644
--- a/compiler/rustc_hir_analysis/src/check/mod.rs
+++ b/compiler/rustc_hir_analysis/src/check/mod.rs
@@ -304,7 +304,7 @@ fn bounds_from_generic_predicates<'tcx>(
         debug!("predicate {:?}", predicate);
         let bound_predicate = predicate.kind();
         match bound_predicate.skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_predicate)) => {
                 let entry = types.entry(trait_predicate.self_ty()).or_default();
                 let def_id = trait_predicate.def_id();
                 if Some(def_id) != tcx.lang_items().sized_trait() {
@@ -313,7 +313,7 @@ fn bounds_from_generic_predicates<'tcx>(
                     entry.push(trait_predicate.def_id());
                 }
             }
-            ty::PredicateKind::Clause(ty::Clause::Projection(projection_pred)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(projection_pred)) => {
                 projections.push(bound_predicate.rebind(projection_pred));
             }
             _ => {}
diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs
index 73a7ba005b3..51e9b4c4501 100644
--- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs
+++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs
@@ -81,7 +81,7 @@ impl<'tcx> WfCheckingCtxt<'_, 'tcx> {
             self.tcx(),
             cause,
             param_env,
-            ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(arg))),
+            ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg))),
         ));
     }
 }
@@ -419,10 +419,9 @@ fn check_gat_where_clauses(tcx: TyCtxt<'_>, associated_items: &[hir::TraitItemRe
         let mut unsatisfied_bounds: Vec<_> = required_bounds
             .into_iter()
             .filter(|clause| match clause.kind().skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::RegionOutlives(ty::OutlivesPredicate(
-                    a,
-                    b,
-                ))) => !region_known_to_outlive(
+                ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(
+                    ty::OutlivesPredicate(a, b),
+                )) => !region_known_to_outlive(
                     tcx,
                     gat_def_id.def_id,
                     param_env,
@@ -430,7 +429,7 @@ fn check_gat_where_clauses(tcx: TyCtxt<'_>, associated_items: &[hir::TraitItemRe
                     a,
                     b,
                 ),
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(
                     a,
                     b,
                 ))) => !ty_known_to_outlive(
@@ -574,7 +573,7 @@ fn gather_gat_bounds<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>(
                 );
                 // The predicate we expect to see. (In our example,
                 // `Self: 'me`.)
-                let clause = ty::PredicateKind::Clause(ty::Clause::TypeOutlives(
+                let clause = ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(
                     ty::OutlivesPredicate(ty_param, region_param),
                 ));
                 let clause = tcx.mk_predicate(ty::Binder::dummy(clause));
@@ -623,7 +622,7 @@ fn gather_gat_bounds<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>(
                     },
                 );
                 // The predicate we expect to see.
-                let clause = ty::PredicateKind::Clause(ty::Clause::RegionOutlives(
+                let clause = ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(
                     ty::OutlivesPredicate(region_a_param, region_b_param),
                 ));
                 let clause = tcx.mk_predicate(ty::Binder::dummy(clause));
@@ -1032,7 +1031,7 @@ fn check_type_defn<'tcx>(tcx: TyCtxt<'tcx>, item: &hir::Item<'tcx>, all_sized: b
                     tcx,
                     cause,
                     wfcx.param_env,
-                    ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(
+                    ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(
                         ty::Const::from_anon_const(tcx, discr_def_id.expect_local()),
                     ))),
                 ));
@@ -1876,7 +1875,8 @@ impl<'tcx> WfCheckingCtxt<'_, 'tcx> {
             // We lower empty bounds like `Vec<dyn Copy>:` as
             // `WellFormed(Vec<dyn Copy>)`, which will later get checked by
             // regular WF checking
-            if let ty::PredicateKind::Clause(ty::Clause::WellFormed(..)) = pred.kind().skip_binder()
+            if let ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..)) =
+                pred.kind().skip_binder()
             {
                 continue;
             }
diff --git a/compiler/rustc_hir_analysis/src/coherence/builtin.rs b/compiler/rustc_hir_analysis/src/coherence/builtin.rs
index a98d8e17153..2441c8667d4 100644
--- a/compiler/rustc_hir_analysis/src/coherence/builtin.rs
+++ b/compiler/rustc_hir_analysis/src/coherence/builtin.rs
@@ -571,7 +571,7 @@ fn infringing_fields_error(
                             .or_default()
                             .push(error.obligation.cause.span);
                     }
-                    if let ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate {
+                    if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(ty::TraitPredicate {
                         trait_ref,
                         polarity: ty::ImplPolarity::Positive,
                         ..
diff --git a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs
index 0479efceaad..b3e9acf0a4b 100644
--- a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs
+++ b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs
@@ -36,11 +36,13 @@ fn associated_type_bounds<'tcx>(
 
     let bounds_from_parent = trait_predicates.predicates.iter().copied().filter(|(pred, _)| {
         match pred.kind().skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(tr)) => tr.self_ty() == item_ty,
-            ty::PredicateKind::Clause(ty::Clause::Projection(proj)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(tr)) => tr.self_ty() == item_ty,
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj)) => {
                 proj.projection_ty.self_ty() == item_ty
             }
-            ty::PredicateKind::Clause(ty::Clause::TypeOutlives(outlives)) => outlives.0 == item_ty,
+            ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(outlives)) => {
+                outlives.0 == item_ty
+            }
             _ => false,
         }
     });
diff --git a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs
index c905db06174..cd801202aea 100644
--- a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs
+++ b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs
@@ -190,7 +190,7 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen
                 let ct = tcx.mk_const(param_const, ct_ty);
 
                 let predicate = ty::Binder::dummy(ty::PredicateKind::Clause(
-                    ty::Clause::ConstArgHasType(ct, ct_ty),
+                    ty::ClauseKind::ConstArgHasType(ct, ct_ty),
                 ))
                 .to_predicate(tcx);
                 predicates.insert((predicate, param.span));
@@ -222,7 +222,7 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen
                     } else {
                         let span = bound_pred.bounded_ty.span;
                         let predicate = ty::Binder::bind_with_vars(
-                            ty::PredicateKind::Clause(ty::Clause::WellFormed(ty.into())),
+                            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(ty.into())),
                             bound_vars,
                         );
                         predicates.insert((predicate.to_predicate(tcx), span));
@@ -252,7 +252,7 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen
                         _ => bug!(),
                     };
                     let pred = ty::Binder::dummy(ty::PredicateKind::Clause(
-                        ty::Clause::RegionOutlives(ty::OutlivesPredicate(r1, r2)),
+                        ty::ClauseKind::RegionOutlives(ty::OutlivesPredicate(r1, r2)),
                     ))
                     .to_predicate(icx.tcx);
 
@@ -320,14 +320,14 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen
                 },
             );
             predicates.push((
-                ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::RegionOutlives(
+                ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(
                     ty::OutlivesPredicate(orig_region, dup_region),
                 )))
                 .to_predicate(icx.tcx),
                 duplicate.span,
             ));
             predicates.push((
-                ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::RegionOutlives(
+                ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(
                     ty::OutlivesPredicate(dup_region, orig_region),
                 )))
                 .to_predicate(icx.tcx),
@@ -358,8 +358,10 @@ fn const_evaluatable_predicates_of(
             if let ty::ConstKind::Unevaluated(_) = ct.kind() {
                 let span = self.tcx.def_span(c.def_id);
                 self.preds.insert((
-                    ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(ct)))
-                        .to_predicate(self.tcx),
+                    ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(
+                        ct,
+                    )))
+                    .to_predicate(self.tcx),
                     span,
                 ));
             }
@@ -449,11 +451,13 @@ pub(super) fn explicit_predicates_of<'tcx>(
             .iter()
             .copied()
             .filter(|(pred, _)| match pred.kind().skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(tr)) => !is_assoc_item_ty(tr.self_ty()),
-                ty::PredicateKind::Clause(ty::Clause::Projection(proj)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(tr)) => {
+                    !is_assoc_item_ty(tr.self_ty())
+                }
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj)) => {
                     !is_assoc_item_ty(proj.projection_ty.self_ty())
                 }
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(outlives)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(outlives)) => {
                     !is_assoc_item_ty(outlives.0)
                 }
                 _ => true,
@@ -496,7 +500,7 @@ pub(super) fn explicit_predicates_of<'tcx>(
                     .predicates
                     .into_iter()
                     .filter(|(pred, _)| {
-                        if let ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(ct, _)) =
+                        if let ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(ct, _)) =
                             pred.kind().skip_binder()
                         {
                             match ct.kind() {
@@ -677,7 +681,7 @@ pub(super) fn implied_predicates_with_filter(
     if matches!(filter, PredicateFilter::SelfOnly) {
         for &(pred, span) in implied_bounds {
             debug!("superbound: {:?}", pred);
-            if let ty::PredicateKind::Clause(ty::Clause::Trait(bound)) = pred.kind().skip_binder()
+            if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(bound)) = pred.kind().skip_binder()
                 && bound.polarity == ty::ImplPolarity::Positive
             {
                 tcx.at(span).super_predicates_of(bound.def_id());
@@ -774,7 +778,9 @@ pub(super) fn type_param_predicates(
         )
         .into_iter()
         .filter(|(predicate, _)| match predicate.kind().skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(data)) => data.self_ty().is_param(index),
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) => {
+                data.self_ty().is_param(index)
+            }
             _ => false,
         }),
     );
diff --git a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs
index 794812a5ce7..d20f39e9b05 100644
--- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs
+++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs
@@ -1761,7 +1761,7 @@ impl<'a, 'tcx> BoundVarContext<'a, 'tcx> {
             let obligations = predicates.predicates.iter().filter_map(|&(pred, _)| {
                 let bound_predicate = pred.kind();
                 match bound_predicate.skip_binder() {
-                    ty::PredicateKind::Clause(ty::Clause::Trait(data)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) => {
                         // The order here needs to match what we would get from `subst_supertrait`
                         let pred_bound_vars = bound_predicate.bound_vars();
                         let mut all_bound_vars = bound_vars.clone();
diff --git a/compiler/rustc_hir_analysis/src/constrained_generic_params.rs b/compiler/rustc_hir_analysis/src/constrained_generic_params.rs
index 9200c2aecf5..6aecb95b484 100644
--- a/compiler/rustc_hir_analysis/src/constrained_generic_params.rs
+++ b/compiler/rustc_hir_analysis/src/constrained_generic_params.rs
@@ -187,7 +187,7 @@ pub fn setup_constraining_predicates<'tcx>(
         for j in i..predicates.len() {
             // Note that we don't have to care about binders here,
             // as the impl trait ref never contains any late-bound regions.
-            if let ty::PredicateKind::Clause(ty::Clause::Projection(projection)) =
+            if let ty::PredicateKind::Clause(ty::ClauseKind::Projection(projection)) =
                 predicates[j].0.kind().skip_binder()
             {
                 // Special case: watch out for some kind of sneaky attempt
diff --git a/compiler/rustc_hir_analysis/src/hir_wf_check.rs b/compiler/rustc_hir_analysis/src/hir_wf_check.rs
index f2618b3daf1..f1765174d79 100644
--- a/compiler/rustc_hir_analysis/src/hir_wf_check.rs
+++ b/compiler/rustc_hir_analysis/src/hir_wf_check.rs
@@ -79,7 +79,7 @@ fn diagnostic_hir_wf_check<'tcx>(
                 self.tcx,
                 cause,
                 self.param_env,
-                ty::PredicateKind::Clause(ty::Clause::WellFormed(tcx_ty.into())),
+                ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(tcx_ty.into())),
             ));
 
             for error in ocx.select_all_or_error() {
diff --git a/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs b/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs
index 201cb94f0b3..97813a291da 100644
--- a/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs
+++ b/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs
@@ -236,7 +236,7 @@ fn unconstrained_parent_impl_substs<'tcx>(
     // the functions in `cgp` add the constrained parameters to a list of
     // unconstrained parameters.
     for (predicate, _) in impl_generic_predicates.predicates.iter() {
-        if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) =
+        if let ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj)) =
             predicate.kind().skip_binder()
         {
             let projection_ty = proj.projection_ty;
@@ -438,8 +438,8 @@ fn trait_predicates_eq<'tcx>(
     let pred2_kind = predicate2.kind().skip_binder();
     let (trait_pred1, trait_pred2) = match (pred1_kind, pred2_kind) {
         (
-            ty::PredicateKind::Clause(ty::Clause::Trait(pred1)),
-            ty::PredicateKind::Clause(ty::Clause::Trait(pred2)),
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred1)),
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred2)),
         ) => (pred1, pred2),
         // Just use plain syntactic equivalence if either of the predicates aren't
         // trait predicates or have bound vars.
@@ -478,7 +478,7 @@ fn check_specialization_on<'tcx>(tcx: TyCtxt<'tcx>, predicate: ty::Predicate<'tc
         _ if predicate.is_global() => (),
         // We allow specializing on explicitly marked traits with no associated
         // items.
-        ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate {
+        ty::PredicateKind::Clause(ty::ClauseKind::Trait(ty::TraitPredicate {
             trait_ref,
             constness: _,
             polarity: _,
@@ -498,7 +498,7 @@ fn check_specialization_on<'tcx>(tcx: TyCtxt<'tcx>, predicate: ty::Predicate<'tc
                     .emit();
             }
         }
-        ty::PredicateKind::Clause(ty::Clause::Projection(ty::ProjectionPredicate {
+        ty::PredicateKind::Clause(ty::ClauseKind::Projection(ty::ProjectionPredicate {
             projection_ty,
             term,
         })) => {
@@ -509,7 +509,7 @@ fn check_specialization_on<'tcx>(tcx: TyCtxt<'tcx>, predicate: ty::Predicate<'tc
                 )
                 .emit();
         }
-        ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..)) => {
             // FIXME(min_specialization), FIXME(const_generics):
             // It probably isn't right to allow _every_ `ConstArgHasType` but I am somewhat unsure
             // about the actual rules that would be sound. Can't just always error here because otherwise
@@ -532,22 +532,22 @@ fn trait_predicate_kind<'tcx>(
     predicate: ty::Predicate<'tcx>,
 ) -> Option<TraitSpecializationKind> {
     match predicate.kind().skip_binder() {
-        ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate {
+        ty::PredicateKind::Clause(ty::ClauseKind::Trait(ty::TraitPredicate {
             trait_ref,
             constness: _,
             polarity: _,
         })) => Some(tcx.trait_def(trait_ref.def_id).specialization_kind),
-        ty::PredicateKind::Clause(ty::Clause::RegionOutlives(_))
-        | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(_))
-        | ty::PredicateKind::Clause(ty::Clause::Projection(_))
-        | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
+        ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(_))
+        | ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(_))
+        | ty::PredicateKind::Clause(ty::ClauseKind::Projection(_))
+        | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
         | ty::PredicateKind::AliasRelate(..)
-        | ty::PredicateKind::Clause(ty::Clause::WellFormed(_))
+        | ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(_))
         | ty::PredicateKind::Subtype(_)
         | ty::PredicateKind::Coerce(_)
         | ty::PredicateKind::ObjectSafe(_)
         | ty::PredicateKind::ClosureKind(..)
-        | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
         | ty::PredicateKind::ConstEquate(..)
         | ty::PredicateKind::Ambiguous
         | ty::PredicateKind::TypeWellFormedFromEnv(..) => None,
diff --git a/compiler/rustc_hir_analysis/src/outlives/explicit.rs b/compiler/rustc_hir_analysis/src/outlives/explicit.rs
index 79c56490f3c..e63549998d2 100644
--- a/compiler/rustc_hir_analysis/src/outlives/explicit.rs
+++ b/compiler/rustc_hir_analysis/src/outlives/explicit.rs
@@ -30,7 +30,7 @@ impl<'tcx> ExplicitPredicatesMap<'tcx> {
             // process predicates and convert to `RequiredPredicates` entry, see below
             for &(predicate, span) in predicates.predicates {
                 match predicate.kind().skip_binder() {
-                    ty::PredicateKind::Clause(ty::Clause::TypeOutlives(OutlivesPredicate(
+                    ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(OutlivesPredicate(
                         ty,
                         reg,
                     ))) => insert_outlives_predicate(
@@ -41,10 +41,9 @@ impl<'tcx> ExplicitPredicatesMap<'tcx> {
                         &mut required_predicates,
                     ),
 
-                    ty::PredicateKind::Clause(ty::Clause::RegionOutlives(OutlivesPredicate(
-                        reg1,
-                        reg2,
-                    ))) => insert_outlives_predicate(
+                    ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(
+                        OutlivesPredicate(reg1, reg2),
+                    )) => insert_outlives_predicate(
                         tcx,
                         reg1.into(),
                         reg2,
@@ -52,16 +51,16 @@ impl<'tcx> ExplicitPredicatesMap<'tcx> {
                         &mut required_predicates,
                     ),
 
-                    ty::PredicateKind::Clause(ty::Clause::Trait(..))
-                    | ty::PredicateKind::Clause(ty::Clause::Projection(..))
-                    | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
-                    | ty::PredicateKind::Clause(ty::Clause::WellFormed(..))
+                    ty::PredicateKind::Clause(ty::ClauseKind::Trait(..))
+                    | ty::PredicateKind::Clause(ty::ClauseKind::Projection(..))
+                    | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
+                    | ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..))
                     | ty::PredicateKind::AliasRelate(..)
                     | ty::PredicateKind::ObjectSafe(..)
                     | ty::PredicateKind::ClosureKind(..)
                     | ty::PredicateKind::Subtype(..)
                     | ty::PredicateKind::Coerce(..)
-                    | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+                    | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
                     | ty::PredicateKind::ConstEquate(..)
                     | ty::PredicateKind::Ambiguous
                     | ty::PredicateKind::TypeWellFormedFromEnv(..) => (),
diff --git a/compiler/rustc_hir_analysis/src/outlives/mod.rs b/compiler/rustc_hir_analysis/src/outlives/mod.rs
index fdbb890ce3d..98f4a8e00ef 100644
--- a/compiler/rustc_hir_analysis/src/outlives/mod.rs
+++ b/compiler/rustc_hir_analysis/src/outlives/mod.rs
@@ -17,7 +17,7 @@ pub fn provide(providers: &mut Providers) {
     *providers = Providers { inferred_outlives_of, inferred_outlives_crate, ..*providers };
 }
 
-fn inferred_outlives_of(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[(ty::Clause<'_>, Span)] {
+fn inferred_outlives_of(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[(ty::ClauseKind<'_>, Span)] {
     let id = tcx.hir().local_def_id_to_hir_id(item_def_id);
 
     if matches!(tcx.def_kind(item_def_id), hir::def::DefKind::AnonConst)
@@ -53,8 +53,8 @@ fn inferred_outlives_of(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[(ty::Clau
                     let mut pred: Vec<String> = predicates
                         .iter()
                         .map(|(out_pred, _)| match out_pred {
-                            ty::Clause::RegionOutlives(p) => p.to_string(),
-                            ty::Clause::TypeOutlives(p) => p.to_string(),
+                            ty::ClauseKind::RegionOutlives(p) => p.to_string(),
+                            ty::ClauseKind::TypeOutlives(p) => p.to_string(),
                             err => bug!("unexpected clause {:?}", err),
                         })
                         .collect();
@@ -104,11 +104,11 @@ fn inferred_outlives_crate(tcx: TyCtxt<'_>, (): ()) -> CratePredicatesMap<'_> {
                     |(ty::OutlivesPredicate(kind1, region2), &span)| {
                         match kind1.unpack() {
                             GenericArgKind::Type(ty1) => Some((
-                                ty::Clause::TypeOutlives(ty::OutlivesPredicate(ty1, *region2)),
+                                ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(ty1, *region2)),
                                 span,
                             )),
                             GenericArgKind::Lifetime(region1) => Some((
-                                ty::Clause::RegionOutlives(ty::OutlivesPredicate(
+                                ty::ClauseKind::RegionOutlives(ty::OutlivesPredicate(
                                     region1, *region2,
                                 )),
                                 span,
diff --git a/compiler/rustc_hir_analysis/src/variance/mod.rs b/compiler/rustc_hir_analysis/src/variance/mod.rs
index 3ebd9e134bf..8bb9ca2acf2 100644
--- a/compiler/rustc_hir_analysis/src/variance/mod.rs
+++ b/compiler/rustc_hir_analysis/src/variance/mod.rs
@@ -162,7 +162,7 @@ fn variance_of_opaque(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[ty::Varianc
         // which thus mentions `'a` and should thus accept hidden types that borrow 'a
         // instead of requiring an additional `+ 'a`.
         match pred.kind().skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(ty::TraitPredicate {
                 trait_ref: ty::TraitRef { def_id: _, substs, .. },
                 constness: _,
                 polarity: _,
@@ -171,7 +171,7 @@ fn variance_of_opaque(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[ty::Varianc
                     subst.visit_with(&mut collector);
                 }
             }
-            ty::PredicateKind::Clause(ty::Clause::Projection(ty::ProjectionPredicate {
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(ty::ProjectionPredicate {
                 projection_ty: ty::AliasTy { substs, .. },
                 term,
             })) => {
@@ -180,7 +180,7 @@ fn variance_of_opaque(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[ty::Varianc
                 }
                 term.visit_with(&mut collector);
             }
-            ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(
+            ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(
                 _,
                 region,
             ))) => {
diff --git a/compiler/rustc_hir_typeck/src/_match.rs b/compiler/rustc_hir_typeck/src/_match.rs
index 444ff90595c..a07580fe72d 100644
--- a/compiler/rustc_hir_typeck/src/_match.rs
+++ b/compiler/rustc_hir_typeck/src/_match.rs
@@ -542,25 +542,27 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         .subst_iter_copied(self.tcx, substs)
                     {
                         let pred = pred.kind().rebind(match pred.kind().skip_binder() {
-                            ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) => {
+                            ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred)) => {
                                 // FIXME(rpitit): This will need to be fixed when we move to associated types
                                 assert!(matches!(
                                     *trait_pred.trait_ref.self_ty().kind(),
                                     ty::Alias(_, ty::AliasTy { def_id, substs: alias_substs, .. })
                                     if def_id == rpit_def_id && substs == alias_substs
                                 ));
-                                ty::PredicateKind::Clause(ty::Clause::Trait(
+                                ty::PredicateKind::Clause(ty::ClauseKind::Trait(
                                     trait_pred.with_self_ty(self.tcx, ty),
                                 ))
                             }
-                            ty::PredicateKind::Clause(ty::Clause::Projection(mut proj_pred)) => {
+                            ty::PredicateKind::Clause(ty::ClauseKind::Projection(
+                                mut proj_pred,
+                            )) => {
                                 assert!(matches!(
                                     *proj_pred.projection_ty.self_ty().kind(),
                                     ty::Alias(_, ty::AliasTy { def_id, substs: alias_substs, .. })
                                     if def_id == rpit_def_id && substs == alias_substs
                                 ));
                                 proj_pred = proj_pred.with_self_ty(self.tcx, ty);
-                                ty::PredicateKind::Clause(ty::Clause::Projection(proj_pred))
+                                ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj_pred))
                             }
                             _ => continue,
                         });
diff --git a/compiler/rustc_hir_typeck/src/closure.rs b/compiler/rustc_hir_typeck/src/closure.rs
index dce426ca2db..94b37fb3450 100644
--- a/compiler/rustc_hir_typeck/src/closure.rs
+++ b/compiler/rustc_hir_typeck/src/closure.rs
@@ -222,7 +222,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             // Given a Projection predicate, we can potentially infer
             // the complete signature.
             if expected_sig.is_none()
-                && let ty::PredicateKind::Clause(ty::Clause::Projection(proj_predicate)) = bound_predicate.skip_binder()
+                && let ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj_predicate)) = bound_predicate.skip_binder()
             {
                 let inferred_sig = self.normalize(
                     span,
@@ -258,10 +258,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             // like `F : Fn<A>`. Note that due to subtyping we could encounter
             // many viable options, so pick the most restrictive.
             let trait_def_id = match bound_predicate.skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Projection(data)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(data)) => {
                     Some(data.projection_ty.trait_def_id(self.tcx))
                 }
-                ty::PredicateKind::Clause(ty::Clause::Trait(data)) => Some(data.def_id()),
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) => Some(data.def_id()),
                 _ => None,
             };
             if let Some(closure_kind) =
@@ -695,7 +695,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             // where R is the return type we are expecting. This type `T`
             // will be our output.
             let bound_predicate = predicate.kind();
-            if let ty::PredicateKind::Clause(ty::Clause::Projection(proj_predicate)) =
+            if let ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj_predicate)) =
                 bound_predicate.skip_binder()
             {
                 self.deduce_future_output_from_projection(
diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs
index 79157eae7ed..c0c839b1f18 100644
--- a/compiler/rustc_hir_typeck/src/coercion.rs
+++ b/compiler/rustc_hir_typeck/src/coercion.rs
@@ -631,7 +631,7 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> {
             debug!("coerce_unsized resolve step: {:?}", obligation);
             let bound_predicate = obligation.predicate.kind();
             let trait_pred = match bound_predicate.skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred))
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred))
                     if traits.contains(&trait_pred.def_id()) =>
                 {
                     if unsize_did == trait_pred.def_id() {
@@ -767,7 +767,7 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> {
                     self.tcx,
                     self.cause.clone(),
                     self.param_env,
-                    ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::TypeOutlives(
+                    ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(
                         ty::OutlivesPredicate(a, b_region),
                     ))),
                 ),
diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs
index 3f6847be91b..e250e68a7f1 100644
--- a/compiler/rustc_hir_typeck/src/expr.rs
+++ b/compiler/rustc_hir_typeck/src/expr.rs
@@ -2983,7 +2983,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
     ) {
         for error in errors {
             match error.obligation.predicate.kind().skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(predicate))
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate))
                     if self.tcx.is_diagnostic_item(sym::SliceIndex, predicate.trait_ref.def_id) => {
                 }
                 _ => continue,
diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs
index 34f98f4310e..b44c51ba945 100644
--- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs
+++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs
@@ -483,7 +483,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             self.tcx,
             cause,
             self.param_env,
-            ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(arg))),
+            ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg))),
         ));
     }
 
@@ -647,7 +647,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
         self.fulfillment_cx.borrow().pending_obligations().into_iter().filter_map(
             move |obligation| match &obligation.predicate.kind().skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Projection(data))
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(data))
                     if self.self_type_matches_expected_vid(
                         data.projection_ty.self_ty(),
                         ty_var_root,
@@ -655,23 +655,23 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 {
                     Some(obligation)
                 }
-                ty::PredicateKind::Clause(ty::Clause::Trait(data))
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(data))
                     if self.self_type_matches_expected_vid(data.self_ty(), ty_var_root) =>
                 {
                     Some(obligation)
                 }
 
-                ty::PredicateKind::Clause(ty::Clause::Trait(..))
-                | ty::PredicateKind::Clause(ty::Clause::Projection(..))
-                | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::Projection(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
                 | ty::PredicateKind::Subtype(..)
                 | ty::PredicateKind::Coerce(..)
-                | ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..))
-                | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..))
-                | ty::PredicateKind::Clause(ty::Clause::WellFormed(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..))
                 | ty::PredicateKind::ObjectSafe(..)
                 | ty::PredicateKind::AliasRelate(..)
-                | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
                 | ty::PredicateKind::ConstEquate(..)
                 // N.B., this predicate is created by breaking down a
                 // `ClosureType: FnFoo()` predicate, where
@@ -692,7 +692,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         let sized_did = self.tcx.lang_items().sized_trait();
         self.obligations_for_self_ty(self_ty).any(|obligation| {
             match obligation.predicate.kind().skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(data)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) => {
                     Some(data.def_id()) == sized_did
                 }
                 _ => false,
diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs
index 2135643cbeb..880437023c8 100644
--- a/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs
+++ b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs
@@ -25,14 +25,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
         let generics = self.tcx.generics_of(def_id);
         let predicate_substs = match unsubstituted_pred.kind().skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => pred.trait_ref.substs.to_vec(),
-            ty::PredicateKind::Clause(ty::Clause::Projection(pred)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => {
+                pred.trait_ref.substs.to_vec()
+            }
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(pred)) => {
                 pred.projection_ty.substs.to_vec()
             }
-            ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(arg, ty)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(arg, ty)) => {
                 vec![ty.into(), arg.into()]
             }
-            ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(e)) => vec![e.into()],
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(e)) => vec![e.into()],
             _ => return false,
         };
 
@@ -514,7 +516,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             impl_predicates.predicates[impl_predicate_index].0.kind().skip_binder();
 
         match relevant_broken_predicate {
-            ty::PredicateKind::Clause(ty::Clause::Trait(broken_trait)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(broken_trait)) => {
                 // ...
                 self.blame_specific_part_of_expr_corresponding_to_generic_param(
                     broken_trait.trait_ref.self_ty().into(),
diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs
index bf8ad5faac4..f294ff0051d 100644
--- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs
+++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs
@@ -1948,7 +1948,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         // do that, so it's OK.
                         for (predicate, span) in instantiated
                         {
-                            if let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) = predicate.kind().skip_binder()
+                            if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) = predicate.kind().skip_binder()
                                 && pred.self_ty().peel_refs() == callee_ty
                                 && self.tcx.is_fn_trait(pred.def_id())
                             {
diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs
index 630878bbf0c..d311ebe8c32 100644
--- a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs
+++ b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs
@@ -226,7 +226,7 @@ impl<'a, 'tcx> AstConv<'tcx> for FnCtxt<'a, 'tcx> {
             predicates: tcx.arena.alloc_from_iter(
                 self.param_env.caller_bounds().iter().filter_map(|predicate| {
                     match predicate.kind().skip_binder() {
-                        ty::PredicateKind::Clause(ty::Clause::Trait(data))
+                        ty::PredicateKind::Clause(ty::ClauseKind::Trait(data))
                             if data.self_ty().is_param(index) =>
                         {
                             // HACK(eddyb) should get the original `Span`.
diff --git a/compiler/rustc_hir_typeck/src/generator_interior/mod.rs b/compiler/rustc_hir_typeck/src/generator_interior/mod.rs
index fb28233bfb1..dabe7749cb6 100644
--- a/compiler/rustc_hir_typeck/src/generator_interior/mod.rs
+++ b/compiler/rustc_hir_typeck/src/generator_interior/mod.rs
@@ -577,7 +577,7 @@ fn check_must_not_suspend_ty<'tcx>(
             let mut has_emitted = false;
             for &(predicate, _) in fcx.tcx.explicit_item_bounds(def).skip_binder() {
                 // We only look at the `DefId`, so it is safe to skip the binder here.
-                if let ty::PredicateKind::Clause(ty::Clause::Trait(ref poly_trait_predicate)) =
+                if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(ref poly_trait_predicate)) =
                     predicate.kind().skip_binder()
                 {
                     let def_id = poly_trait_predicate.trait_ref.def_id;
diff --git a/compiler/rustc_hir_typeck/src/inherited.rs b/compiler/rustc_hir_typeck/src/inherited.rs
index aa4f90b4ad8..c193d761804 100644
--- a/compiler/rustc_hir_typeck/src/inherited.rs
+++ b/compiler/rustc_hir_typeck/src/inherited.rs
@@ -129,7 +129,7 @@ impl<'tcx> Inherited<'tcx> {
         let infer_var_info = &mut self.infer_var_info.borrow_mut();
 
         // (*) binder skipped
-        if let ty::PredicateKind::Clause(ty::Clause::Trait(tpred)) = obligation.predicate.kind().skip_binder()
+        if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(tpred)) = obligation.predicate.kind().skip_binder()
             && let Some(ty) = self.shallow_resolve(tpred.self_ty()).ty_vid().map(|t| self.root_var(t))
             && self.tcx.lang_items().sized_trait().is_some_and(|st| st != tpred.trait_ref.def_id)
         {
@@ -143,7 +143,7 @@ impl<'tcx> Inherited<'tcx> {
                     .kind()
                     .rebind(
                         // (*) binder moved here
-                        ty::PredicateKind::Clause(ty::Clause::Trait(tpred.with_self_ty(self.tcx, new_self_ty)))
+                        ty::PredicateKind::Clause(ty::ClauseKind::Trait(tpred.with_self_ty(self.tcx, new_self_ty)))
                     ),
             );
             // Don't report overflow errors. Otherwise equivalent to may_hold.
@@ -152,7 +152,7 @@ impl<'tcx> Inherited<'tcx> {
             }
         }
 
-        if let ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) =
+        if let ty::PredicateKind::Clause(ty::ClauseKind::Projection(predicate)) =
             obligation.predicate.kind().skip_binder()
         {
             // If the projection predicate (Foo::Bar == X) has X as a non-TyVid,
diff --git a/compiler/rustc_hir_typeck/src/method/confirm.rs b/compiler/rustc_hir_typeck/src/method/confirm.rs
index 6cd7bd5d196..279ff849e3d 100644
--- a/compiler/rustc_hir_typeck/src/method/confirm.rs
+++ b/compiler/rustc_hir_typeck/src/method/confirm.rs
@@ -606,7 +606,7 @@ impl<'a, 'tcx> ConfirmContext<'a, 'tcx> {
         traits::elaborate(self.tcx, predicates.predicates.iter().copied())
             // We don't care about regions here.
             .filter_map(|pred| match pred.kind().skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred))
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred))
                     if trait_pred.def_id() == sized_def_id =>
                 {
                     let span = predicates
diff --git a/compiler/rustc_hir_typeck/src/method/mod.rs b/compiler/rustc_hir_typeck/src/method/mod.rs
index 59736b42cf7..ebd7b3123eb 100644
--- a/compiler/rustc_hir_typeck/src/method/mod.rs
+++ b/compiler/rustc_hir_typeck/src/method/mod.rs
@@ -473,7 +473,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             tcx,
             obligation.cause,
             self.param_env,
-            ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(method_ty.into()))),
+            ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(
+                method_ty.into(),
+            ))),
         ));
 
         let callee = MethodCallee { def_id, substs, sig: fn_sig };
diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs
index 91347c01327..e759fd6bc94 100644
--- a/compiler/rustc_hir_typeck/src/method/probe.rs
+++ b/compiler/rustc_hir_typeck/src/method/probe.rs
@@ -825,7 +825,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> {
         let bounds = self.param_env.caller_bounds().iter().filter_map(|predicate| {
             let bound_predicate = predicate.kind();
             match bound_predicate.skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_predicate)) => {
                     match *trait_predicate.trait_ref.self_ty().kind() {
                         ty::Param(p) if p == param_ty => {
                             Some(bound_predicate.rebind(trait_predicate.trait_ref))
@@ -834,15 +834,15 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> {
                     }
                 }
                 ty::PredicateKind::Subtype(..)
-                | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
                 | ty::PredicateKind::Coerce(..)
-                | ty::PredicateKind::Clause(ty::Clause::Projection(..))
-                | ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..))
-                | ty::PredicateKind::Clause(ty::Clause::WellFormed(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::Projection(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..))
                 | ty::PredicateKind::ObjectSafe(..)
                 | ty::PredicateKind::ClosureKind(..)
-                | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..))
-                | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
                 | ty::PredicateKind::ConstEquate(..)
                 | ty::PredicateKind::Ambiguous
                 | ty::PredicateKind::AliasRelate(..)
diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs
index 66e771b794a..67fb7c1d48c 100644
--- a/compiler/rustc_hir_typeck/src/method/suggest.rs
+++ b/compiler/rustc_hir_typeck/src/method/suggest.rs
@@ -542,7 +542,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             let mut unimplemented_traits = FxHashMap::default();
             let mut unimplemented_traits_only = true;
             for (predicate, _parent_pred, cause) in unsatisfied_predicates {
-                if let (ty::PredicateKind::Clause(ty::Clause::Trait(p)), Some(cause)) =
+                if let (ty::PredicateKind::Clause(ty::ClauseKind::Trait(p)), Some(cause)) =
                     (predicate.kind().skip_binder(), cause.as_ref())
                 {
                     if p.trait_ref.self_ty() != rcvr_ty {
@@ -569,7 +569,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             // because of some non-Clone item being iterated over.
             for (predicate, _parent_pred, _cause) in unsatisfied_predicates {
                 match predicate.kind().skip_binder() {
-                    ty::PredicateKind::Clause(ty::Clause::Trait(p))
+                    ty::PredicateKind::Clause(ty::ClauseKind::Trait(p))
                         if unimplemented_traits.contains_key(&p.trait_ref.def_id) => {}
                     _ => {
                         unimplemented_traits_only = false;
@@ -581,7 +581,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             let mut collect_type_param_suggestions =
                 |self_ty: Ty<'tcx>, parent_pred: ty::Predicate<'tcx>, obligation: &str| {
                     // We don't care about regions here, so it's fine to skip the binder here.
-                    if let (ty::Param(_), ty::PredicateKind::Clause(ty::Clause::Trait(p))) =
+                    if let (ty::Param(_), ty::PredicateKind::Clause(ty::ClauseKind::Trait(p))) =
                         (self_ty.kind(), parent_pred.kind().skip_binder())
                     {
                         let hir = self.tcx.hir();
@@ -641,7 +641,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             let mut format_pred = |pred: ty::Predicate<'tcx>| {
                 let bound_predicate = pred.kind();
                 match bound_predicate.skip_binder() {
-                    ty::PredicateKind::Clause(ty::Clause::Projection(pred)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::Projection(pred)) => {
                         let pred = bound_predicate.rebind(pred);
                         // `<Foo as Iterator>::Item = String`.
                         let projection_ty = pred.skip_binder().projection_ty;
@@ -665,7 +665,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         bound_span_label(projection_ty.self_ty(), &obligation, &quiet);
                         Some((obligation, projection_ty.self_ty()))
                     }
-                    ty::PredicateKind::Clause(ty::Clause::Trait(poly_trait_ref)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::Trait(poly_trait_ref)) => {
                         let p = poly_trait_ref.trait_ref;
                         let self_ty = p.self_ty();
                         let path = p.print_only_trait_path();
@@ -698,7 +698,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 // Don't point out the span of `WellFormed` predicates.
                 if !matches!(
                     p.kind().skip_binder(),
-                    ty::PredicateKind::Clause(ty::Clause::Projection(..) | ty::Clause::Trait(..))
+                    ty::PredicateKind::Clause(
+                        ty::ClauseKind::Projection(..) | ty::ClauseKind::Trait(..)
+                    )
                 ) {
                     continue;
                 };
@@ -740,7 +742,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         let sized_pred =
                             unsatisfied_predicates.iter().any(|(pred, _, _)| {
                                 match pred.kind().skip_binder() {
-                                    ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => {
+                                    ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => {
                                         Some(pred.def_id()) == self.tcx.lang_items().sized_trait()
                                             && pred.polarity == ty::ImplPolarity::Positive
                                     }
@@ -2012,16 +2014,18 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
     ) {
         let all_local_types_needing_impls =
             errors.iter().all(|e| match e.obligation.predicate.kind().skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => match pred.self_ty().kind() {
-                    ty::Adt(def, _) => def.did().is_local(),
-                    _ => false,
-                },
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => {
+                    match pred.self_ty().kind() {
+                        ty::Adt(def, _) => def.did().is_local(),
+                        _ => false,
+                    }
+                }
                 _ => false,
             });
         let mut preds: Vec<_> = errors
             .iter()
             .filter_map(|e| match e.obligation.predicate.kind().skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => Some(pred),
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => Some(pred),
                 _ => None,
             })
             .collect();
@@ -2092,7 +2096,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         let mut derives = Vec::<(String, Span, Symbol)>::new();
         let mut traits = Vec::new();
         for (pred, _, _) in unsatisfied_predicates {
-            let Some(ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred))) =
+            let Some(ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred))) =
                 pred.kind().no_bound_vars()
             else {
                 continue
@@ -2527,10 +2531,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     match p.kind().skip_binder() {
                         // Hide traits if they are present in predicates as they can be fixed without
                         // having to implement them.
-                        ty::PredicateKind::Clause(ty::Clause::Trait(t)) => {
+                        ty::PredicateKind::Clause(ty::ClauseKind::Trait(t)) => {
                             t.def_id() == info.def_id
                         }
-                        ty::PredicateKind::Clause(ty::Clause::Projection(p)) => {
+                        ty::PredicateKind::Clause(ty::ClauseKind::Projection(p)) => {
                             p.projection_ty.def_id == info.def_id
                         }
                         _ => false,
diff --git a/compiler/rustc_infer/src/infer/canonical/query_response.rs b/compiler/rustc_infer/src/infer/canonical/query_response.rs
index 2cf8d8c702d..630014e2380 100644
--- a/compiler/rustc_infer/src/infer/canonical/query_response.rs
+++ b/compiler/rustc_infer/src/infer/canonical/query_response.rs
@@ -584,12 +584,12 @@ impl<'tcx> InferCtxt<'tcx> {
         let ty::OutlivesPredicate(k1, r2) = predicate;
 
         let atom = match k1.unpack() {
-            GenericArgKind::Lifetime(r1) => {
-                ty::PredicateKind::Clause(ty::Clause::RegionOutlives(ty::OutlivesPredicate(r1, r2)))
-            }
-            GenericArgKind::Type(t1) => {
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(t1, r2)))
-            }
+            GenericArgKind::Lifetime(r1) => ty::PredicateKind::Clause(
+                ty::ClauseKind::RegionOutlives(ty::OutlivesPredicate(r1, r2)),
+            ),
+            GenericArgKind::Type(t1) => ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(
+                ty::OutlivesPredicate(t1, r2),
+            )),
             GenericArgKind::Const(..) => {
                 // Consts cannot outlive one another, so we don't expect to
                 // encounter this branch.
@@ -739,9 +739,9 @@ impl<'tcx> TypeRelatingDelegate<'tcx> for QueryTypeRelatingDelegate<'_, 'tcx> {
         self.obligations.push(Obligation {
             cause: self.cause.clone(),
             param_env: self.param_env,
-            predicate: ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::RegionOutlives(
-                ty::OutlivesPredicate(sup, sub),
-            )))
+            predicate: ty::Binder::dummy(ty::PredicateKind::Clause(
+                ty::ClauseKind::RegionOutlives(ty::OutlivesPredicate(sup, sub)),
+            ))
             .to_predicate(self.infcx.tcx),
             recursion_depth: 0,
         });
diff --git a/compiler/rustc_infer/src/infer/combine.rs b/compiler/rustc_infer/src/infer/combine.rs
index 152c56572b6..bc5ca9fcf7a 100644
--- a/compiler/rustc_infer/src/infer/combine.rs
+++ b/compiler/rustc_infer/src/infer/combine.rs
@@ -417,7 +417,9 @@ impl<'infcx, 'tcx> CombineFields<'infcx, 'tcx> {
                 self.tcx(),
                 self.trace.cause.clone(),
                 self.param_env,
-                ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(b_ty.into()))),
+                ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(
+                    b_ty.into(),
+                ))),
             ));
         }
 
diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs
index fc1f90fdc13..63370eec10b 100644
--- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs
+++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs
@@ -408,9 +408,9 @@ impl<'tcx> InferCtxt<'tcx> {
                 predicate
                     .kind()
                     .map_bound(|kind| match kind {
-                        ty::PredicateKind::Clause(ty::Clause::Projection(projection_predicate))
-                            if projection_predicate.projection_ty.def_id == item_def_id =>
-                        {
+                        ty::PredicateKind::Clause(ty::ClauseKind::Projection(
+                            projection_predicate,
+                        )) if projection_predicate.projection_ty.def_id == item_def_id => {
                             projection_predicate.term.ty()
                         }
                         _ => None,
diff --git a/compiler/rustc_infer/src/infer/opaque_types.rs b/compiler/rustc_infer/src/infer/opaque_types.rs
index 6b8293f90f1..54ebc313d8a 100644
--- a/compiler/rustc_infer/src/infer/opaque_types.rs
+++ b/compiler/rustc_infer/src/infer/opaque_types.rs
@@ -647,7 +647,7 @@ impl<'tcx> InferCtxt<'tcx> {
                 ct_op: |ct| ct,
             });
 
-            if let ty::PredicateKind::Clause(ty::Clause::Projection(projection)) =
+            if let ty::PredicateKind::Clause(ty::ClauseKind::Projection(projection)) =
                 predicate.kind().skip_binder()
             {
                 if projection.term.references_error() {
diff --git a/compiler/rustc_infer/src/infer/outlives/mod.rs b/compiler/rustc_infer/src/infer/outlives/mod.rs
index c1f0b9253a5..d926f7f7cbd 100644
--- a/compiler/rustc_infer/src/infer/outlives/mod.rs
+++ b/compiler/rustc_infer/src/infer/outlives/mod.rs
@@ -23,21 +23,21 @@ pub fn explicit_outlives_bounds<'tcx>(
         .map(ty::Predicate::kind)
         .filter_map(ty::Binder::no_bound_vars)
         .filter_map(move |kind| match kind {
-            ty::PredicateKind::Clause(ty::Clause::Projection(..))
-            | ty::PredicateKind::Clause(ty::Clause::Trait(..))
-            | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(..))
+            | ty::PredicateKind::Clause(ty::ClauseKind::Trait(..))
+            | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
             | ty::PredicateKind::AliasRelate(..)
             | ty::PredicateKind::Coerce(..)
             | ty::PredicateKind::Subtype(..)
-            | ty::PredicateKind::Clause(ty::Clause::WellFormed(..))
+            | ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..))
             | ty::PredicateKind::ObjectSafe(..)
             | ty::PredicateKind::ClosureKind(..)
-            | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..))
-            | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+            | ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(..))
+            | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
             | ty::PredicateKind::ConstEquate(..)
             | ty::PredicateKind::Ambiguous
             | ty::PredicateKind::TypeWellFormedFromEnv(..) => None,
-            ty::PredicateKind::Clause(ty::Clause::RegionOutlives(ty::OutlivesPredicate(
+            ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(ty::OutlivesPredicate(
                 r_a,
                 r_b,
             ))) => Some(OutlivesBound::RegionSubRegion(r_b, r_a)),
diff --git a/compiler/rustc_infer/src/infer/projection.rs b/compiler/rustc_infer/src/infer/projection.rs
index 4f8c9188cf8..75455533181 100644
--- a/compiler/rustc_infer/src/infer/projection.rs
+++ b/compiler/rustc_infer/src/infer/projection.rs
@@ -27,7 +27,7 @@ impl<'tcx> InferCtxt<'tcx> {
             //
             // The new solver correctly handles projection equality so this hack
             // is not necessary. if re-enabled it should emit `PredicateKind::AliasRelate`
-            // not `PredicateKind::Clause(Clause::Projection(..))` as in the new solver
+            // not `PredicateKind::Clause(ClauseKind::Projection(..))` as in the new solver
             // `Projection` is used as `normalizes-to` which will fail for `<T as Trait>::Assoc eq ?0`.
             return projection_ty.to_ty(self.tcx);
         } else {
@@ -36,9 +36,10 @@ impl<'tcx> InferCtxt<'tcx> {
                 kind: TypeVariableOriginKind::NormalizeProjectionType,
                 span: self.tcx.def_span(def_id),
             });
-            let projection = ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::Projection(
-                ty::ProjectionPredicate { projection_ty, term: ty_var.into() },
-            )));
+            let projection =
+                ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::Projection(
+                    ty::ProjectionPredicate { projection_ty, term: ty_var.into() },
+                )));
             let obligation =
                 Obligation::with_depth(self.tcx, cause, recursion_depth, param_env, projection);
             obligations.push(obligation);
diff --git a/compiler/rustc_infer/src/traits/mod.rs b/compiler/rustc_infer/src/traits/mod.rs
index 8ce8b4e2024..6da490a90ee 100644
--- a/compiler/rustc_infer/src/traits/mod.rs
+++ b/compiler/rustc_infer/src/traits/mod.rs
@@ -79,8 +79,8 @@ impl<'tcx> PredicateObligation<'tcx> {
 
     pub fn without_const(mut self, tcx: TyCtxt<'tcx>) -> PredicateObligation<'tcx> {
         self.param_env = self.param_env.without_const();
-        if let ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) = self.predicate.kind().skip_binder() && trait_pred.is_const_if_const() {
-            self.predicate = tcx.mk_predicate(self.predicate.kind().map_bound(|_| ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred.without_const()))));
+        if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred)) = self.predicate.kind().skip_binder() && trait_pred.is_const_if_const() {
+            self.predicate = tcx.mk_predicate(self.predicate.kind().map_bound(|_| ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred.without_const()))));
         }
         self
     }
diff --git a/compiler/rustc_infer/src/traits/util.rs b/compiler/rustc_infer/src/traits/util.rs
index 5622062ef7e..4f65a312c4e 100644
--- a/compiler/rustc_infer/src/traits/util.rs
+++ b/compiler/rustc_infer/src/traits/util.rs
@@ -199,7 +199,7 @@ impl<'tcx, O: Elaboratable<'tcx>> Elaborator<'tcx, O> {
 
         let bound_predicate = elaboratable.predicate().kind();
         match bound_predicate.skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(data)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) => {
                 // Negative trait bounds do not imply any supertrait bounds
                 if data.polarity == ty::ImplPolarity::Negative {
                     return;
@@ -227,7 +227,7 @@ impl<'tcx, O: Elaboratable<'tcx>> Elaborator<'tcx, O> {
                 debug!(?data, ?obligations, "super_predicates");
                 self.extend_deduped(obligations);
             }
-            ty::PredicateKind::Clause(ty::Clause::WellFormed(..)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..)) => {
                 // Currently, we do not elaborate WF predicates,
                 // although we easily could.
             }
@@ -243,13 +243,13 @@ impl<'tcx, O: Elaboratable<'tcx>> Elaborator<'tcx, O> {
                 // Currently, we do not "elaborate" predicates like `X -> Y`,
                 // though conceivably we might.
             }
-            ty::PredicateKind::Clause(ty::Clause::Projection(..)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(..)) => {
                 // Nothing to elaborate in a projection predicate.
             }
             ty::PredicateKind::ClosureKind(..) => {
                 // Nothing to elaborate when waiting for a closure's kind to be inferred.
             }
-            ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..)) => {
                 // Currently, we do not elaborate const-evaluatable
                 // predicates.
             }
@@ -257,10 +257,10 @@ impl<'tcx, O: Elaboratable<'tcx>> Elaborator<'tcx, O> {
                 // Currently, we do not elaborate const-equate
                 // predicates.
             }
-            ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..)) => {
                 // Nothing to elaborate from `'a: 'b`.
             }
-            ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(
+            ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(
                 ty_max,
                 r_min,
             ))) => {
@@ -292,7 +292,7 @@ impl<'tcx, O: Elaboratable<'tcx>> Elaborator<'tcx, O> {
                                 if r.is_late_bound() {
                                     None
                                 } else {
-                                    Some(ty::PredicateKind::Clause(ty::Clause::RegionOutlives(
+                                    Some(ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(
                                         ty::OutlivesPredicate(r, r_min),
                                     )))
                                 }
@@ -300,7 +300,7 @@ impl<'tcx, O: Elaboratable<'tcx>> Elaborator<'tcx, O> {
 
                             Component::Param(p) => {
                                 let ty = tcx.mk_ty_param(p.index, p.name);
-                                Some(ty::PredicateKind::Clause(ty::Clause::TypeOutlives(
+                                Some(ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(
                                     ty::OutlivesPredicate(ty, r_min),
                                 )))
                             }
@@ -310,7 +310,7 @@ impl<'tcx, O: Elaboratable<'tcx>> Elaborator<'tcx, O> {
                             Component::Alias(alias_ty) => {
                                 // We might end up here if we have `Foo<<Bar as Baz>::Assoc>: 'a`.
                                 // With this, we can deduce that `<Bar as Baz>::Assoc: 'a`.
-                                Some(ty::PredicateKind::Clause(ty::Clause::TypeOutlives(
+                                Some(ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(
                                     ty::OutlivesPredicate(alias_ty.to_ty(tcx), r_min),
                                 )))
                             }
@@ -334,7 +334,7 @@ impl<'tcx, O: Elaboratable<'tcx>> Elaborator<'tcx, O> {
             ty::PredicateKind::AliasRelate(..) => {
                 // No
             }
-            ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..)) => {
                 // Nothing to elaborate
             }
         }
diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs
index 785adc0b4fb..9fb83bec993 100644
--- a/compiler/rustc_lint/src/builtin.rs
+++ b/compiler/rustc_lint/src/builtin.rs
@@ -1592,27 +1592,27 @@ declare_lint_pass!(
 
 impl<'tcx> LateLintPass<'tcx> for TrivialConstraints {
     fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'tcx>) {
-        use rustc_middle::ty::Clause;
+        use rustc_middle::ty::ClauseKind;
         use rustc_middle::ty::PredicateKind::*;
 
         if cx.tcx.features().trivial_bounds {
             let predicates = cx.tcx.predicates_of(item.owner_id);
             for &(predicate, span) in predicates.predicates {
                 let predicate_kind_name = match predicate.kind().skip_binder() {
-                    Clause(Clause::Trait(..)) => "trait",
-                    Clause(Clause::TypeOutlives(..)) |
-                    Clause(Clause::RegionOutlives(..)) => "lifetime",
+                    Clause(ClauseKind::Trait(..)) => "trait",
+                    Clause(ClauseKind::TypeOutlives(..)) |
+                    Clause(ClauseKind::RegionOutlives(..)) => "lifetime",
 
                     // `ConstArgHasType` is never global as `ct` is always a param
-                    Clause(Clause::ConstArgHasType(..)) |
+                    Clause(ClauseKind::ConstArgHasType(..)) |
                     // Ignore projections, as they can only be global
                     // if the trait bound is global
-                    Clause(Clause::Projection(..)) |
-                    AliasRelate(..) |
+                    Clause(ClauseKind::Projection(..)) |
                     // Ignore bounds that a user can't type
-                    Clause(Clause::WellFormed(..)) |
+                    Clause(ClauseKind::WellFormed(..)) |
                     // FIXME(generic_const_exprs): `ConstEvaluatable` can be written
-                    Clause(Clause::ConstEvaluatable(..)) |
+                    Clause(ClauseKind::ConstEvaluatable(..)) |
+                    AliasRelate(..) |
                     ObjectSafe(..) |
                     ClosureKind(..) |
                     Subtype(..) |
@@ -1984,13 +1984,13 @@ declare_lint_pass!(ExplicitOutlivesRequirements => [EXPLICIT_OUTLIVES_REQUIREMEN
 
 impl ExplicitOutlivesRequirements {
     fn lifetimes_outliving_lifetime<'tcx>(
-        inferred_outlives: &'tcx [(ty::Clause<'tcx>, Span)],
+        inferred_outlives: &'tcx [(ty::ClauseKind<'tcx>, Span)],
         def_id: DefId,
     ) -> Vec<ty::Region<'tcx>> {
         inferred_outlives
             .iter()
             .filter_map(|(clause, _)| match *clause {
-                ty::Clause::RegionOutlives(ty::OutlivesPredicate(a, b)) => match *a {
+                ty::ClauseKind::RegionOutlives(ty::OutlivesPredicate(a, b)) => match *a {
                     ty::ReEarlyBound(ebr) if ebr.def_id == def_id => Some(b),
                     _ => None,
                 },
@@ -2000,13 +2000,13 @@ impl ExplicitOutlivesRequirements {
     }
 
     fn lifetimes_outliving_type<'tcx>(
-        inferred_outlives: &'tcx [(ty::Clause<'tcx>, Span)],
+        inferred_outlives: &'tcx [(ty::ClauseKind<'tcx>, Span)],
         index: u32,
     ) -> Vec<ty::Region<'tcx>> {
         inferred_outlives
             .iter()
             .filter_map(|(clause, _)| match *clause {
-                ty::Clause::TypeOutlives(ty::OutlivesPredicate(a, b)) => {
+                ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(a, b)) => {
                     a.is_param(index).then_some(b)
                 }
                 _ => None,
diff --git a/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs b/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs
index 15715c8fca0..61c23b4c255 100644
--- a/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs
+++ b/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs
@@ -78,7 +78,7 @@ impl<'tcx> LateLintPass<'tcx> for OpaqueHiddenInferredBound {
             // Liberate bound regions in the predicate since we
             // don't actually care about lifetimes in this check.
             let predicate = cx.tcx.liberate_late_bound_regions(def_id, pred.kind());
-            let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = predicate else {
+            let ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj)) = predicate else {
                 continue;
             };
             // Only check types, since those are the only things that may
@@ -133,7 +133,7 @@ impl<'tcx> LateLintPass<'tcx> for OpaqueHiddenInferredBound {
                     let add_bound = match (proj_term.kind(), assoc_pred.kind().skip_binder()) {
                         (
                             ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }),
-                            ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)),
+                            ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred)),
                         ) => Some(AddBound {
                             suggest_span: cx.tcx.def_span(*def_id).shrink_to_hi(),
                             trait_ref: trait_pred.print_modifiers_and_trait_path(),
diff --git a/compiler/rustc_lint/src/traits.rs b/compiler/rustc_lint/src/traits.rs
index 7ea1a138b7e..8aba5349578 100644
--- a/compiler/rustc_lint/src/traits.rs
+++ b/compiler/rustc_lint/src/traits.rs
@@ -87,12 +87,12 @@ declare_lint_pass!(
 
 impl<'tcx> LateLintPass<'tcx> for DropTraitConstraints {
     fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'tcx>) {
-        use rustc_middle::ty::Clause;
+        use rustc_middle::ty::ClauseKind;
         use rustc_middle::ty::PredicateKind::*;
 
         let predicates = cx.tcx.explicit_predicates_of(item.owner_id);
         for &(predicate, span) in predicates.predicates {
-            let Clause(Clause::Trait(trait_predicate)) = predicate.kind().skip_binder() else {
+            let Clause(ClauseKind::Trait(trait_predicate)) = predicate.kind().skip_binder() else {
                 continue
             };
             let def_id = trait_predicate.trait_ref.def_id;
diff --git a/compiler/rustc_lint/src/unused.rs b/compiler/rustc_lint/src/unused.rs
index 9861610612f..e0033c48edb 100644
--- a/compiler/rustc_lint/src/unused.rs
+++ b/compiler/rustc_lint/src/unused.rs
@@ -289,7 +289,7 @@ impl<'tcx> LateLintPass<'tcx> for UnusedResults {
                         .filter_only_self()
                         .find_map(|(pred, _span)| {
                             // We only look at the `DefId`, so it is safe to skip the binder here.
-                            if let ty::PredicateKind::Clause(ty::Clause::Trait(
+                            if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(
                                 ref poly_trait_predicate,
                             )) = pred.kind().skip_binder()
                             {
diff --git a/compiler/rustc_metadata/src/rmeta/mod.rs b/compiler/rustc_metadata/src/rmeta/mod.rs
index 66048f3ece7..b0fe6eec3c4 100644
--- a/compiler/rustc_metadata/src/rmeta/mod.rs
+++ b/compiler/rustc_metadata/src/rmeta/mod.rs
@@ -376,7 +376,7 @@ define_tables! {
     attr_flags: Table<DefIndex, AttrFlags>,
     def_path_hashes: Table<DefIndex, DefPathHash>,
     explicit_item_bounds: Table<DefIndex, LazyArray<(ty::Predicate<'static>, Span)>>,
-    inferred_outlives_of: Table<DefIndex, LazyArray<(ty::Clause<'static>, Span)>>,
+    inferred_outlives_of: Table<DefIndex, LazyArray<(ty::ClauseKind<'static>, Span)>>,
     inherent_impls: Table<DefIndex, LazyArray<DefIndex>>,
     associated_types_for_impl_traits_in_associated_fn: Table<DefIndex, LazyArray<DefId>>,
     opt_rpitit_info: Table<DefIndex, Option<LazyValue<ty::ImplTraitInTraitData>>>,
diff --git a/compiler/rustc_middle/src/query/erase.rs b/compiler/rustc_middle/src/query/erase.rs
index fd02a16130f..4ea124e7f37 100644
--- a/compiler/rustc_middle/src/query/erase.rs
+++ b/compiler/rustc_middle/src/query/erase.rs
@@ -317,7 +317,7 @@ tcx_lifetime! {
     rustc_middle::traits::query::type_op::Subtype,
     rustc_middle::ty::AdtDef,
     rustc_middle::ty::AliasTy,
-    rustc_middle::ty::Clause,
+    rustc_middle::ty::ClauseKind,
     rustc_middle::ty::ClosureTypeInfo,
     rustc_middle::ty::Const,
     rustc_middle::ty::DestructuredConst,
diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs
index 132b11b29eb..bdc0dc3b2d3 100644
--- a/compiler/rustc_middle/src/query/mod.rs
+++ b/compiler/rustc_middle/src/query/mod.rs
@@ -634,7 +634,7 @@ rustc_queries! {
 
     /// Returns the inferred outlives predicates (e.g., for `struct
     /// Foo<'a, T> { x: &'a T }`, this would return `T: 'a`).
-    query inferred_outlives_of(key: DefId) -> &'tcx [(ty::Clause<'tcx>, Span)] {
+    query inferred_outlives_of(key: DefId) -> &'tcx [(ty::ClauseKind<'tcx>, Span)] {
         desc { |tcx| "computing inferred outlives predicates of `{}`", tcx.def_path_str(key) }
         cache_on_disk_if { key.is_local() }
         separate_provide_extern
diff --git a/compiler/rustc_middle/src/query/on_disk_cache.rs b/compiler/rustc_middle/src/query/on_disk_cache.rs
index 220118ae5cc..105667ba1e6 100644
--- a/compiler/rustc_middle/src/query/on_disk_cache.rs
+++ b/compiler/rustc_middle/src/query/on_disk_cache.rs
@@ -798,7 +798,7 @@ impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [(ty::Predicate<'tcx>
     }
 }
 
-impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [(ty::Clause<'tcx>, Span)] {
+impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [(ty::ClauseKind<'tcx>, Span)] {
     #[inline]
     fn decode(d: &mut CacheDecoder<'a, 'tcx>) -> Self {
         RefDecodable::decode(d)
diff --git a/compiler/rustc_middle/src/ty/codec.rs b/compiler/rustc_middle/src/ty/codec.rs
index 76f52bc34ed..ff8cd904ef8 100644
--- a/compiler/rustc_middle/src/ty/codec.rs
+++ b/compiler/rustc_middle/src/ty/codec.rs
@@ -365,7 +365,9 @@ impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D>
     }
 }
 
-impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D> for [(ty::Clause<'tcx>, Span)] {
+impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D>
+    for [(ty::ClauseKind<'tcx>, Span)]
+{
     fn decode(decoder: &mut D) -> &'tcx Self {
         decoder.interner().arena.alloc_from_iter(
             (0..decoder.read_usize()).map(|_| Decodable::decode(decoder)).collect::<Vec<_>>(),
diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs
index 449129b8418..2b4f69167bf 100644
--- a/compiler/rustc_middle/src/ty/context.rs
+++ b/compiler/rustc_middle/src/ty/context.rs
@@ -1564,7 +1564,7 @@ impl<'tcx> TyCtxt<'tcx> {
         let future_trait = self.require_lang_item(LangItem::Future, None);
 
         self.explicit_item_bounds(def_id).skip_binder().iter().any(|&(predicate, _)| {
-            let ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) = predicate.kind().skip_binder() else {
+            let ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_predicate)) = predicate.kind().skip_binder() else {
                 return false;
             };
             trait_predicate.trait_ref.def_id == future_trait
@@ -1587,7 +1587,7 @@ impl<'tcx> TyCtxt<'tcx> {
             let generic_predicates = self.super_predicates_of(trait_did);
 
             for (predicate, _) in generic_predicates.predicates {
-                if let ty::PredicateKind::Clause(ty::Clause::Trait(data)) =
+                if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) =
                     predicate.kind().skip_binder()
                 {
                     if set.insert(data.def_id()) {
diff --git a/compiler/rustc_middle/src/ty/flags.rs b/compiler/rustc_middle/src/ty/flags.rs
index 684af1abdf6..cc982045c46 100644
--- a/compiler/rustc_middle/src/ty/flags.rs
+++ b/compiler/rustc_middle/src/ty/flags.rs
@@ -237,21 +237,24 @@ impl FlagComputation {
 
     fn add_predicate_atom(&mut self, atom: ty::PredicateKind<'_>) {
         match atom {
-            ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred)) => {
                 self.add_substs(trait_pred.trait_ref.substs);
             }
-            ty::PredicateKind::Clause(ty::Clause::RegionOutlives(ty::OutlivesPredicate(a, b))) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(ty::OutlivesPredicate(
+                a,
+                b,
+            ))) => {
                 self.add_region(a);
                 self.add_region(b);
             }
-            ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(
+            ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(
                 ty,
                 region,
             ))) => {
                 self.add_ty(ty);
                 self.add_region(region);
             }
-            ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(ct, ty)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(ct, ty)) => {
                 self.add_const(ct);
                 self.add_ty(ty);
             }
@@ -263,21 +266,21 @@ impl FlagComputation {
                 self.add_ty(a);
                 self.add_ty(b);
             }
-            ty::PredicateKind::Clause(ty::Clause::Projection(ty::ProjectionPredicate {
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(ty::ProjectionPredicate {
                 projection_ty,
                 term,
             })) => {
                 self.add_alias_ty(projection_ty);
                 self.add_term(term);
             }
-            ty::PredicateKind::Clause(ty::Clause::WellFormed(arg)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg)) => {
                 self.add_substs(slice::from_ref(&arg));
             }
             ty::PredicateKind::ObjectSafe(_def_id) => {}
             ty::PredicateKind::ClosureKind(_def_id, substs, _kind) => {
                 self.add_substs(substs);
             }
-            ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(uv)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(uv)) => {
                 self.add_const(uv);
             }
             ty::PredicateKind::ConstEquate(expected, found) => {
diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs
index 66aba98fe29..f43be1468e8 100644
--- a/compiler/rustc_middle/src/ty/mod.rs
+++ b/compiler/rustc_middle/src/ty/mod.rs
@@ -487,11 +487,11 @@ impl<'tcx> Predicate<'tcx> {
         let kind = self
             .kind()
             .map_bound(|kind| match kind {
-                PredicateKind::Clause(Clause::Trait(TraitPredicate {
+                PredicateKind::Clause(ClauseKind::Trait(TraitPredicate {
                     trait_ref,
                     constness,
                     polarity,
-                })) => Some(PredicateKind::Clause(Clause::Trait(TraitPredicate {
+                })) => Some(PredicateKind::Clause(ClauseKind::Trait(TraitPredicate {
                     trait_ref,
                     constness,
                     polarity: polarity.flip()?,
@@ -505,10 +505,10 @@ impl<'tcx> Predicate<'tcx> {
     }
 
     pub fn without_const(mut self, tcx: TyCtxt<'tcx>) -> Self {
-        if let PredicateKind::Clause(Clause::Trait(TraitPredicate { trait_ref, constness, polarity })) = self.kind().skip_binder()
+        if let PredicateKind::Clause(ClauseKind::Trait(TraitPredicate { trait_ref, constness, polarity })) = self.kind().skip_binder()
             && constness != BoundConstness::NotConst
         {
-            self = tcx.mk_predicate(self.kind().rebind(PredicateKind::Clause(Clause::Trait(TraitPredicate {
+            self = tcx.mk_predicate(self.kind().rebind(PredicateKind::Clause(ClauseKind::Trait(TraitPredicate {
                 trait_ref,
                 constness: BoundConstness::NotConst,
                 polarity,
@@ -520,10 +520,10 @@ impl<'tcx> Predicate<'tcx> {
     #[instrument(level = "debug", skip(tcx), ret)]
     pub fn is_coinductive(self, tcx: TyCtxt<'tcx>) -> bool {
         match self.kind().skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(data)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) => {
                 tcx.trait_is_coinductive(data.def_id())
             }
-            ty::PredicateKind::Clause(ty::Clause::WellFormed(_)) => true,
+            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(_)) => true,
             _ => false,
         }
     }
@@ -536,18 +536,18 @@ impl<'tcx> Predicate<'tcx> {
     #[inline]
     pub fn allow_normalization(self) -> bool {
         match self.kind().skip_binder() {
-            PredicateKind::Clause(Clause::WellFormed(_)) => false,
-            PredicateKind::Clause(Clause::Trait(_))
-            | PredicateKind::Clause(Clause::RegionOutlives(_))
-            | PredicateKind::Clause(Clause::TypeOutlives(_))
-            | PredicateKind::Clause(Clause::Projection(_))
-            | PredicateKind::Clause(Clause::ConstArgHasType(..))
+            PredicateKind::Clause(ClauseKind::WellFormed(_)) => false,
+            PredicateKind::Clause(ClauseKind::Trait(_))
+            | PredicateKind::Clause(ClauseKind::RegionOutlives(_))
+            | PredicateKind::Clause(ClauseKind::TypeOutlives(_))
+            | PredicateKind::Clause(ClauseKind::Projection(_))
+            | PredicateKind::Clause(ClauseKind::ConstArgHasType(..))
             | PredicateKind::AliasRelate(..)
             | PredicateKind::ObjectSafe(_)
             | PredicateKind::ClosureKind(_, _, _)
             | PredicateKind::Subtype(_)
             | PredicateKind::Coerce(_)
-            | PredicateKind::Clause(Clause::ConstEvaluatable(_))
+            | PredicateKind::Clause(ClauseKind::ConstEvaluatable(_))
             | PredicateKind::ConstEquate(_, _)
             | PredicateKind::Ambiguous
             | PredicateKind::TypeWellFormedFromEnv(_) => true,
@@ -565,7 +565,7 @@ impl rustc_errors::IntoDiagnosticArg for Predicate<'_> {
 #[derive(HashStable, TypeFoldable, TypeVisitable, Lift)]
 /// A clause is something that can appear in where bounds or be inferred
 /// by implied bounds.
-pub enum Clause<'tcx> {
+pub enum ClauseKind<'tcx> {
     /// Corresponds to `where Foo: Bar<A, B, C>`. `Foo` here would be
     /// the `Self` type of the trait reference and `A`, `B`, and `C`
     /// would be the type parameters.
@@ -592,9 +592,9 @@ pub enum Clause<'tcx> {
     ConstEvaluatable(ty::Const<'tcx>),
 }
 
-impl<'tcx> Binder<'tcx, Clause<'tcx>> {
+impl<'tcx> Binder<'tcx, ClauseKind<'tcx>> {
     pub fn as_trait_clause(self) -> Option<Binder<'tcx, TraitPredicate<'tcx>>> {
-        if let ty::Clause::Trait(trait_clause) = self.skip_binder() {
+        if let ty::ClauseKind::Trait(trait_clause) = self.skip_binder() {
             Some(self.rebind(trait_clause))
         } else {
             None
@@ -602,7 +602,7 @@ impl<'tcx> Binder<'tcx, Clause<'tcx>> {
     }
 
     pub fn as_projection_clause(self) -> Option<Binder<'tcx, ProjectionPredicate<'tcx>>> {
-        if let ty::Clause::Projection(projection_clause) = self.skip_binder() {
+        if let ty::ClauseKind::Projection(projection_clause) = self.skip_binder() {
             Some(self.rebind(projection_clause))
         } else {
             None
@@ -614,7 +614,7 @@ impl<'tcx> Binder<'tcx, Clause<'tcx>> {
 #[derive(HashStable, TypeFoldable, TypeVisitable, Lift)]
 pub enum PredicateKind<'tcx> {
     /// Prove a clause
-    Clause(Clause<'tcx>),
+    Clause(ClauseKind<'tcx>),
 
     /// Trait must be object-safe.
     ObjectSafe(DefId),
@@ -653,7 +653,7 @@ pub enum PredicateKind<'tcx> {
     /// Used for coherence to mark opaque types as possibly equal to each other but ambiguous.
     Ambiguous,
 
-    /// Separate from `Clause::Projection` which is used for normalization in new solver.
+    /// Separate from `ClauseKind::Projection` which is used for normalization in new solver.
     /// This predicate requires two terms to be equal to eachother.
     ///
     /// Only used for new solver
@@ -687,7 +687,8 @@ pub struct CratePredicatesMap<'tcx> {
     /// For each struct with outlive bounds, maps to a vector of the
     /// predicate of its outlive bounds. If an item has no outlives
     /// bounds, it will have no entry.
-    pub predicates: FxHashMap<DefId, &'tcx [(Clause<'tcx>, Span)]>,
+    // FIXME(clause): should this be a `Clause`?
+    pub predicates: FxHashMap<DefId, &'tcx [(ClauseKind<'tcx>, Span)]>,
 }
 
 impl<'tcx> Predicate<'tcx> {
@@ -1207,14 +1208,14 @@ impl<'tcx> ToPredicate<'tcx> for Binder<'tcx, PredicateKind<'tcx>> {
     }
 }
 
-impl<'tcx> ToPredicate<'tcx> for Clause<'tcx> {
+impl<'tcx> ToPredicate<'tcx> for ClauseKind<'tcx> {
     #[inline(always)]
     fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> {
         tcx.mk_predicate(ty::Binder::dummy(ty::PredicateKind::Clause(self)))
     }
 }
 
-impl<'tcx> ToPredicate<'tcx> for Binder<'tcx, Clause<'tcx>> {
+impl<'tcx> ToPredicate<'tcx> for Binder<'tcx, ClauseKind<'tcx>> {
     #[inline(always)]
     fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> {
         tcx.mk_predicate(self.map_bound(|clause| ty::PredicateKind::Clause(clause)))
@@ -1228,10 +1229,10 @@ impl<'tcx> ToPredicate<'tcx> for TraitRef<'tcx> {
     }
 }
 
-impl<'tcx> ToPredicate<'tcx, Binder<'tcx, Clause<'tcx>>> for TraitRef<'tcx> {
+impl<'tcx> ToPredicate<'tcx, Binder<'tcx, ClauseKind<'tcx>>> for TraitRef<'tcx> {
     #[inline(always)]
-    fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> Binder<'tcx, Clause<'tcx>> {
-        Binder::dummy(Clause::Trait(TraitPredicate {
+    fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> Binder<'tcx, ClauseKind<'tcx>> {
+        Binder::dummy(ClauseKind::Trait(TraitPredicate {
             trait_ref: self,
             constness: ty::BoundConstness::NotConst,
             polarity: ty::ImplPolarity::Positive,
@@ -1247,9 +1248,9 @@ impl<'tcx> ToPredicate<'tcx> for Binder<'tcx, TraitRef<'tcx>> {
     }
 }
 
-impl<'tcx> ToPredicate<'tcx, Binder<'tcx, Clause<'tcx>>> for Binder<'tcx, TraitRef<'tcx>> {
+impl<'tcx> ToPredicate<'tcx, Binder<'tcx, ClauseKind<'tcx>>> for Binder<'tcx, TraitRef<'tcx>> {
     #[inline(always)]
-    fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Binder<'tcx, Clause<'tcx>> {
+    fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Binder<'tcx, ClauseKind<'tcx>> {
         let pred: PolyTraitPredicate<'tcx> = self.to_predicate(tcx);
         pred.to_predicate(tcx)
     }
@@ -1280,43 +1281,43 @@ impl<'tcx> ToPredicate<'tcx, PolyTraitPredicate<'tcx>> for TraitPredicate<'tcx>
 
 impl<'tcx> ToPredicate<'tcx> for PolyTraitPredicate<'tcx> {
     fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> {
-        self.map_bound(|p| PredicateKind::Clause(Clause::Trait(p))).to_predicate(tcx)
+        self.map_bound(|p| PredicateKind::Clause(ClauseKind::Trait(p))).to_predicate(tcx)
     }
 }
 
-impl<'tcx> ToPredicate<'tcx, Binder<'tcx, Clause<'tcx>>> for PolyTraitPredicate<'tcx> {
-    fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> Binder<'tcx, Clause<'tcx>> {
-        self.map_bound(|p| Clause::Trait(p))
+impl<'tcx> ToPredicate<'tcx, Binder<'tcx, ClauseKind<'tcx>>> for PolyTraitPredicate<'tcx> {
+    fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> Binder<'tcx, ClauseKind<'tcx>> {
+        self.map_bound(|p| ClauseKind::Trait(p))
     }
 }
 
 impl<'tcx> ToPredicate<'tcx> for PolyRegionOutlivesPredicate<'tcx> {
     fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> {
-        self.map_bound(|p| PredicateKind::Clause(Clause::RegionOutlives(p))).to_predicate(tcx)
+        self.map_bound(|p| PredicateKind::Clause(ClauseKind::RegionOutlives(p))).to_predicate(tcx)
     }
 }
 
 impl<'tcx> ToPredicate<'tcx> for PolyTypeOutlivesPredicate<'tcx> {
     fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> {
-        self.map_bound(|p| PredicateKind::Clause(Clause::TypeOutlives(p))).to_predicate(tcx)
+        self.map_bound(|p| PredicateKind::Clause(ClauseKind::TypeOutlives(p))).to_predicate(tcx)
     }
 }
 
 impl<'tcx> ToPredicate<'tcx> for PolyProjectionPredicate<'tcx> {
     fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> {
-        self.map_bound(|p| PredicateKind::Clause(Clause::Projection(p))).to_predicate(tcx)
+        self.map_bound(|p| PredicateKind::Clause(ClauseKind::Projection(p))).to_predicate(tcx)
     }
 }
 
-impl<'tcx> ToPredicate<'tcx, Binder<'tcx, Clause<'tcx>>> for PolyProjectionPredicate<'tcx> {
-    fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> Binder<'tcx, Clause<'tcx>> {
-        self.map_bound(|p| Clause::Projection(p))
+impl<'tcx> ToPredicate<'tcx, Binder<'tcx, ClauseKind<'tcx>>> for PolyProjectionPredicate<'tcx> {
+    fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> Binder<'tcx, ClauseKind<'tcx>> {
+        self.map_bound(|p| ClauseKind::Projection(p))
     }
 }
 
 impl<'tcx> ToPredicate<'tcx> for TraitPredicate<'tcx> {
     fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> {
-        PredicateKind::Clause(Clause::Trait(self)).to_predicate(tcx)
+        PredicateKind::Clause(ClauseKind::Trait(self)).to_predicate(tcx)
     }
 }
 
@@ -1324,18 +1325,18 @@ impl<'tcx> Predicate<'tcx> {
     pub fn to_opt_poly_trait_pred(self) -> Option<PolyTraitPredicate<'tcx>> {
         let predicate = self.kind();
         match predicate.skip_binder() {
-            PredicateKind::Clause(Clause::Trait(t)) => Some(predicate.rebind(t)),
-            PredicateKind::Clause(Clause::Projection(..))
-            | PredicateKind::Clause(Clause::ConstArgHasType(..))
+            PredicateKind::Clause(ClauseKind::Trait(t)) => Some(predicate.rebind(t)),
+            PredicateKind::Clause(ClauseKind::Projection(..))
+            | PredicateKind::Clause(ClauseKind::ConstArgHasType(..))
             | PredicateKind::AliasRelate(..)
             | PredicateKind::Subtype(..)
             | PredicateKind::Coerce(..)
-            | PredicateKind::Clause(Clause::RegionOutlives(..))
-            | PredicateKind::Clause(Clause::WellFormed(..))
+            | PredicateKind::Clause(ClauseKind::RegionOutlives(..))
+            | PredicateKind::Clause(ClauseKind::WellFormed(..))
             | PredicateKind::ObjectSafe(..)
             | PredicateKind::ClosureKind(..)
-            | PredicateKind::Clause(Clause::TypeOutlives(..))
-            | PredicateKind::Clause(Clause::ConstEvaluatable(..))
+            | PredicateKind::Clause(ClauseKind::TypeOutlives(..))
+            | PredicateKind::Clause(ClauseKind::ConstEvaluatable(..))
             | PredicateKind::ConstEquate(..)
             | PredicateKind::Ambiguous
             | PredicateKind::TypeWellFormedFromEnv(..) => None,
@@ -1345,18 +1346,18 @@ impl<'tcx> Predicate<'tcx> {
     pub fn to_opt_poly_projection_pred(self) -> Option<PolyProjectionPredicate<'tcx>> {
         let predicate = self.kind();
         match predicate.skip_binder() {
-            PredicateKind::Clause(Clause::Projection(t)) => Some(predicate.rebind(t)),
-            PredicateKind::Clause(Clause::Trait(..))
-            | PredicateKind::Clause(Clause::ConstArgHasType(..))
+            PredicateKind::Clause(ClauseKind::Projection(t)) => Some(predicate.rebind(t)),
+            PredicateKind::Clause(ClauseKind::Trait(..))
+            | PredicateKind::Clause(ClauseKind::ConstArgHasType(..))
             | PredicateKind::AliasRelate(..)
             | PredicateKind::Subtype(..)
             | PredicateKind::Coerce(..)
-            | PredicateKind::Clause(Clause::RegionOutlives(..))
-            | PredicateKind::Clause(Clause::WellFormed(..))
+            | PredicateKind::Clause(ClauseKind::RegionOutlives(..))
+            | PredicateKind::Clause(ClauseKind::WellFormed(..))
             | PredicateKind::ObjectSafe(..)
             | PredicateKind::ClosureKind(..)
-            | PredicateKind::Clause(Clause::TypeOutlives(..))
-            | PredicateKind::Clause(Clause::ConstEvaluatable(..))
+            | PredicateKind::Clause(ClauseKind::TypeOutlives(..))
+            | PredicateKind::Clause(ClauseKind::ConstEvaluatable(..))
             | PredicateKind::ConstEquate(..)
             | PredicateKind::Ambiguous
             | PredicateKind::TypeWellFormedFromEnv(..) => None,
@@ -1366,25 +1367,25 @@ impl<'tcx> Predicate<'tcx> {
     pub fn to_opt_type_outlives(self) -> Option<PolyTypeOutlivesPredicate<'tcx>> {
         let predicate = self.kind();
         match predicate.skip_binder() {
-            PredicateKind::Clause(Clause::TypeOutlives(data)) => Some(predicate.rebind(data)),
-            PredicateKind::Clause(Clause::Trait(..))
-            | PredicateKind::Clause(Clause::ConstArgHasType(..))
-            | PredicateKind::Clause(Clause::Projection(..))
+            PredicateKind::Clause(ClauseKind::TypeOutlives(data)) => Some(predicate.rebind(data)),
+            PredicateKind::Clause(ClauseKind::Trait(..))
+            | PredicateKind::Clause(ClauseKind::ConstArgHasType(..))
+            | PredicateKind::Clause(ClauseKind::Projection(..))
             | PredicateKind::AliasRelate(..)
             | PredicateKind::Subtype(..)
             | PredicateKind::Coerce(..)
-            | PredicateKind::Clause(Clause::RegionOutlives(..))
-            | PredicateKind::Clause(Clause::WellFormed(..))
+            | PredicateKind::Clause(ClauseKind::RegionOutlives(..))
+            | PredicateKind::Clause(ClauseKind::WellFormed(..))
             | PredicateKind::ObjectSafe(..)
             | PredicateKind::ClosureKind(..)
-            | PredicateKind::Clause(Clause::ConstEvaluatable(..))
+            | PredicateKind::Clause(ClauseKind::ConstEvaluatable(..))
             | PredicateKind::ConstEquate(..)
             | PredicateKind::Ambiguous
             | PredicateKind::TypeWellFormedFromEnv(..) => None,
         }
     }
 
-    pub fn as_clause(self) -> Option<Binder<'tcx, Clause<'tcx>>> {
+    pub fn as_clause(self) -> Option<Binder<'tcx, ClauseKind<'tcx>>> {
         let predicate = self.kind();
         match predicate.skip_binder() {
             PredicateKind::Clause(clause) => Some(predicate.rebind(clause)),
diff --git a/compiler/rustc_middle/src/ty/parameterized.rs b/compiler/rustc_middle/src/ty/parameterized.rs
index 13be15269f4..97d13822adc 100644
--- a/compiler/rustc_middle/src/ty/parameterized.rs
+++ b/compiler/rustc_middle/src/ty/parameterized.rs
@@ -128,6 +128,6 @@ parameterized_over_tcx! {
     ty::TraitRef,
     ty::Const,
     ty::Predicate,
-    ty::Clause,
+    ty::ClauseKind,
     ty::GeneratorDiagnosticData,
 }
diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs
index 4bfed74f705..fdcc608bf8e 100644
--- a/compiler/rustc_middle/src/ty/print/pretty.rs
+++ b/compiler/rustc_middle/src/ty/print/pretty.rs
@@ -928,7 +928,7 @@ pub trait PrettyPrinter<'tcx>:
             let bound_predicate = predicate.kind();
 
             match bound_predicate.skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => {
                     let trait_ref = bound_predicate.rebind(pred.trait_ref);
 
                     // Don't print + Sized, but rather + ?Sized if absent.
@@ -939,7 +939,7 @@ pub trait PrettyPrinter<'tcx>:
 
                     self.insert_trait_and_projection(trait_ref, None, &mut traits, &mut fn_traits);
                 }
-                ty::PredicateKind::Clause(ty::Clause::Projection(pred)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(pred)) => {
                     let proj_ref = bound_predicate.rebind(pred);
                     let trait_ref = proj_ref.required_poly_trait_ref(tcx);
 
@@ -953,7 +953,7 @@ pub trait PrettyPrinter<'tcx>:
                         &mut fn_traits,
                     );
                 }
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(outlives)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(outlives)) => {
                     lifetimes.push(outlives.1);
                 }
                 _ => {}
@@ -2866,18 +2866,18 @@ define_print_and_forward_display! {
 
     ty::PredicateKind<'tcx> {
         match *self {
-            ty::PredicateKind::Clause(ty::Clause::Trait(ref data)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(ref data)) => {
                 p!(print(data))
             }
             ty::PredicateKind::Subtype(predicate) => p!(print(predicate)),
             ty::PredicateKind::Coerce(predicate) => p!(print(predicate)),
-            ty::PredicateKind::Clause(ty::Clause::RegionOutlives(predicate)) => p!(print(predicate)),
-            ty::PredicateKind::Clause(ty::Clause::TypeOutlives(predicate)) => p!(print(predicate)),
-            ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) => p!(print(predicate)),
-            ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(ct, ty)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(predicate)) => p!(print(predicate)),
+            ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(predicate)) => p!(print(predicate)),
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(predicate)) => p!(print(predicate)),
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(ct, ty)) => {
                 p!("the constant `", print(ct), "` has type `", print(ty), "`")
             },
-            ty::PredicateKind::Clause(ty::Clause::WellFormed(arg)) => p!(print(arg), " well-formed"),
+            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg)) => p!(print(arg), " well-formed"),
             ty::PredicateKind::ObjectSafe(trait_def_id) => {
                 p!("the trait `", print_def_path(trait_def_id, &[]), "` is object-safe")
             }
@@ -2886,7 +2886,7 @@ define_print_and_forward_display! {
                 print_value_path(closure_def_id, &[]),
                 write("` implements the trait `{}`", kind)
             ),
-            ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(ct)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(ct)) => {
                 p!("the constant `", print(ct), "` can be evaluated")
             }
             ty::PredicateKind::ConstEquate(c1, c2) => {
diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs
index a4a2fec07ec..ebc4a3d22ad 100644
--- a/compiler/rustc_middle/src/ty/structural_impls.rs
+++ b/compiler/rustc_middle/src/ty/structural_impls.rs
@@ -171,16 +171,16 @@ impl<'tcx> fmt::Debug for ty::Predicate<'tcx> {
     }
 }
 
-impl<'tcx> fmt::Debug for ty::Clause<'tcx> {
+impl<'tcx> fmt::Debug for ty::ClauseKind<'tcx> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match *self {
-            ty::Clause::ConstArgHasType(ct, ty) => write!(f, "ConstArgHasType({ct:?}, {ty:?})"),
-            ty::Clause::Trait(ref a) => a.fmt(f),
-            ty::Clause::RegionOutlives(ref pair) => pair.fmt(f),
-            ty::Clause::TypeOutlives(ref pair) => pair.fmt(f),
-            ty::Clause::Projection(ref pair) => pair.fmt(f),
-            ty::Clause::WellFormed(ref data) => write!(f, "WellFormed({:?})", data),
-            ty::Clause::ConstEvaluatable(ct) => {
+            ty::ClauseKind::ConstArgHasType(ct, ty) => write!(f, "ConstArgHasType({ct:?}, {ty:?})"),
+            ty::ClauseKind::Trait(ref a) => a.fmt(f),
+            ty::ClauseKind::RegionOutlives(ref pair) => pair.fmt(f),
+            ty::ClauseKind::TypeOutlives(ref pair) => pair.fmt(f),
+            ty::ClauseKind::Projection(ref pair) => pair.fmt(f),
+            ty::ClauseKind::WellFormed(ref data) => write!(f, "WellFormed({:?})", data),
+            ty::ClauseKind::ConstEvaluatable(ct) => {
                 write!(f, "ConstEvaluatable({ct:?})")
             }
         }
diff --git a/compiler/rustc_middle/src/ty/util.rs b/compiler/rustc_middle/src/ty/util.rs
index c9f69c37782..ca8b6e7737a 100644
--- a/compiler/rustc_middle/src/ty/util.rs
+++ b/compiler/rustc_middle/src/ty/util.rs
@@ -972,7 +972,7 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for OpaqueTypeExpander<'tcx> {
 
     fn fold_predicate(&mut self, p: ty::Predicate<'tcx>) -> ty::Predicate<'tcx> {
         if let ty::PredicateKind::Clause(clause) = p.kind().skip_binder()
-            && let ty::Clause::Projection(projection_pred) = clause
+            && let ty::ClauseKind::Projection(projection_pred) = clause
         {
             p.kind()
                 .rebind(ty::ProjectionPredicate {
diff --git a/compiler/rustc_mir_transform/src/function_item_references.rs b/compiler/rustc_mir_transform/src/function_item_references.rs
index b1c9c4acc40..e37314209fe 100644
--- a/compiler/rustc_mir_transform/src/function_item_references.rs
+++ b/compiler/rustc_mir_transform/src/function_item_references.rs
@@ -105,7 +105,7 @@ impl<'tcx> FunctionItemRefChecker<'_, 'tcx> {
 
     /// If the given predicate is the trait `fmt::Pointer`, returns the bound parameter type.
     fn is_pointer_trait(&self, bound: &PredicateKind<'tcx>) -> Option<Ty<'tcx>> {
-        if let ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) = bound {
+        if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate)) = bound {
             self.tcx
                 .is_diagnostic_item(sym::Pointer, predicate.def_id())
                 .then(|| predicate.trait_ref.self_ty())
diff --git a/compiler/rustc_mir_transform/src/generator.rs b/compiler/rustc_mir_transform/src/generator.rs
index fe3f8ed047a..cda0f1ea885 100644
--- a/compiler/rustc_mir_transform/src/generator.rs
+++ b/compiler/rustc_mir_transform/src/generator.rs
@@ -1808,7 +1808,7 @@ fn check_must_not_suspend_ty<'tcx>(
             let mut has_emitted = false;
             for &(predicate, _) in tcx.explicit_item_bounds(def).skip_binder() {
                 // We only look at the `DefId`, so it is safe to skip the binder here.
-                if let ty::PredicateKind::Clause(ty::Clause::Trait(ref poly_trait_predicate)) =
+                if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(ref poly_trait_predicate)) =
                     predicate.kind().skip_binder()
                 {
                     let def_id = poly_trait_predicate.trait_ref.def_id;
diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs
index 620aef9883b..dc66c31c191 100644
--- a/compiler/rustc_privacy/src/lib.rs
+++ b/compiler/rustc_privacy/src/lib.rs
@@ -161,29 +161,31 @@ where
 
     fn visit_predicate(&mut self, predicate: ty::Predicate<'tcx>) -> ControlFlow<V::BreakTy> {
         match predicate.kind().skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(ty::TraitPredicate {
                 trait_ref,
                 constness: _,
                 polarity: _,
             })) => self.visit_trait(trait_ref),
-            ty::PredicateKind::Clause(ty::Clause::Projection(ty::ProjectionPredicate {
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(ty::ProjectionPredicate {
                 projection_ty,
                 term,
             })) => {
                 term.visit_with(self)?;
                 self.visit_projection_ty(projection_ty)
             }
-            ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(
+            ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(
                 ty,
                 _region,
             ))) => ty.visit_with(self),
-            ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) => ControlFlow::Continue(()),
-            ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(ct, ty)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..)) => {
+                ControlFlow::Continue(())
+            }
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(ct, ty)) => {
                 ct.visit_with(self)?;
                 ty.visit_with(self)
             }
-            ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(ct)) => ct.visit_with(self),
-            ty::PredicateKind::Clause(ty::Clause::WellFormed(arg)) => arg.visit_with(self),
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(ct)) => ct.visit_with(self),
+            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg)) => arg.visit_with(self),
 
             ty::PredicateKind::ObjectSafe(_)
             | ty::PredicateKind::ClosureKind(_, _, _)
@@ -1271,12 +1273,12 @@ impl<'tcx> Visitor<'tcx> for TypePrivacyVisitor<'tcx> {
 
             for (pred, _) in bounds.predicates() {
                 match pred.skip_binder() {
-                    ty::Clause::Trait(trait_predicate) => {
+                    ty::ClauseKind::Trait(trait_predicate) => {
                         if self.visit_trait(trait_predicate.trait_ref).is_break() {
                             return;
                         }
                     }
-                    ty::Clause::Projection(proj_predicate) => {
+                    ty::ClauseKind::Projection(proj_predicate) => {
                         let term = self.visit(proj_predicate.term);
                         if term.is_break()
                             || self.visit_projection_ty(proj_predicate.projection_ty).is_break()
diff --git a/compiler/rustc_trait_selection/src/solve/assembly/mod.rs b/compiler/rustc_trait_selection/src/solve/assembly/mod.rs
index d9bc8d3b1eb..7be21d9e619 100644
--- a/compiler/rustc_trait_selection/src/solve/assembly/mod.rs
+++ b/compiler/rustc_trait_selection/src/solve/assembly/mod.rs
@@ -106,7 +106,7 @@ pub(super) trait GoalKind<'tcx>:
     fn probe_and_match_goal_against_assumption(
         ecx: &mut EvalCtxt<'_, 'tcx>,
         goal: Goal<'tcx, Self>,
-        assumption: ty::Binder<'tcx, ty::Clause<'tcx>>,
+        assumption: ty::Binder<'tcx, ty::ClauseKind<'tcx>>,
         then: impl FnOnce(&mut EvalCtxt<'_, 'tcx>) -> QueryResult<'tcx>,
     ) -> QueryResult<'tcx>;
 
@@ -116,7 +116,7 @@ pub(super) trait GoalKind<'tcx>:
     fn consider_implied_clause(
         ecx: &mut EvalCtxt<'_, 'tcx>,
         goal: Goal<'tcx, Self>,
-        assumption: ty::Binder<'tcx, ty::Clause<'tcx>>,
+        assumption: ty::Binder<'tcx, ty::ClauseKind<'tcx>>,
         requirements: impl IntoIterator<Item = Goal<'tcx, ty::Predicate<'tcx>>>,
     ) -> QueryResult<'tcx> {
         Self::probe_and_match_goal_against_assumption(ecx, goal, assumption, |ecx| {
@@ -132,7 +132,7 @@ pub(super) trait GoalKind<'tcx>:
     fn consider_alias_bound_candidate(
         ecx: &mut EvalCtxt<'_, 'tcx>,
         goal: Goal<'tcx, Self>,
-        assumption: ty::Binder<'tcx, ty::Clause<'tcx>>,
+        assumption: ty::Binder<'tcx, ty::ClauseKind<'tcx>>,
     ) -> QueryResult<'tcx> {
         Self::probe_and_match_goal_against_assumption(ecx, goal, assumption, |ecx| {
             ecx.validate_alias_bound_self_from_param_env(goal)
@@ -145,7 +145,7 @@ pub(super) trait GoalKind<'tcx>:
     fn consider_object_bound_candidate(
         ecx: &mut EvalCtxt<'_, 'tcx>,
         goal: Goal<'tcx, Self>,
-        assumption: ty::Binder<'tcx, ty::Clause<'tcx>>,
+        assumption: ty::Binder<'tcx, ty::ClauseKind<'tcx>>,
     ) -> QueryResult<'tcx> {
         Self::probe_and_match_goal_against_assumption(ecx, goal, assumption, |ecx| {
             let tcx = ecx.tcx();
diff --git a/compiler/rustc_trait_selection/src/solve/eval_ctxt.rs b/compiler/rustc_trait_selection/src/solve/eval_ctxt.rs
index 4258f9f6bd2..501a55f63fc 100644
--- a/compiler/rustc_trait_selection/src/solve/eval_ctxt.rs
+++ b/compiler/rustc_trait_selection/src/solve/eval_ctxt.rs
@@ -352,19 +352,19 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> {
         let kind = predicate.kind();
         if let Some(kind) = kind.no_bound_vars() {
             match kind {
-                ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate)) => {
                     self.compute_trait_goal(Goal { param_env, predicate })
                 }
-                ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(predicate)) => {
                     self.compute_projection_goal(Goal { param_env, predicate })
                 }
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(predicate)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(predicate)) => {
                     self.compute_type_outlives_goal(Goal { param_env, predicate })
                 }
-                ty::PredicateKind::Clause(ty::Clause::RegionOutlives(predicate)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(predicate)) => {
                     self.compute_region_outlives_goal(Goal { param_env, predicate })
                 }
-                ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(ct, ty)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(ct, ty)) => {
                     self.compute_const_arg_has_type_goal(Goal { param_env, predicate: (ct, ty) })
                 }
                 ty::PredicateKind::Subtype(predicate) => {
@@ -381,14 +381,14 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> {
                 ty::PredicateKind::ObjectSafe(trait_def_id) => {
                     self.compute_object_safe_goal(trait_def_id)
                 }
-                ty::PredicateKind::Clause(ty::Clause::WellFormed(arg)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg)) => {
                     self.compute_well_formed_goal(Goal { param_env, predicate: arg })
                 }
                 ty::PredicateKind::Ambiguous => {
                     self.evaluate_added_goals_and_make_canonical_response(Certainty::AMBIGUOUS)
                 }
                 // FIXME: implement this predicate :)
-                ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(_)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(_)) => {
                     self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes)
                 }
                 ty::PredicateKind::ConstEquate(_, _) => {
diff --git a/compiler/rustc_trait_selection/src/solve/fulfill.rs b/compiler/rustc_trait_selection/src/solve/fulfill.rs
index 0e671144a29..f8f1239d5b4 100644
--- a/compiler/rustc_trait_selection/src/solve/fulfill.rs
+++ b/compiler/rustc_trait_selection/src/solve/fulfill.rs
@@ -93,7 +93,7 @@ impl<'tcx> TraitEngine<'tcx> for FulfillmentCtxt<'tcx> {
                             errors.push(FulfillmentError {
                                 obligation: obligation.clone(),
                                 code: match goal.predicate.kind().skip_binder() {
-                                    ty::PredicateKind::Clause(ty::Clause::Projection(_)) => {
+                                    ty::PredicateKind::Clause(ty::ClauseKind::Projection(_)) => {
                                         FulfillmentErrorCode::CodeProjectionError(
                                             // FIXME: This could be a `Sorts` if the term is a type
                                             MismatchedProjectionTypes { err: TypeError::Mismatch },
diff --git a/compiler/rustc_trait_selection/src/solve/project_goals.rs b/compiler/rustc_trait_selection/src/solve/project_goals.rs
index b99c3927862..e0e27bf851b 100644
--- a/compiler/rustc_trait_selection/src/solve/project_goals.rs
+++ b/compiler/rustc_trait_selection/src/solve/project_goals.rs
@@ -107,7 +107,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
     fn probe_and_match_goal_against_assumption(
         ecx: &mut EvalCtxt<'_, 'tcx>,
         goal: Goal<'tcx, Self>,
-        assumption: ty::Binder<'tcx, ty::Clause<'tcx>>,
+        assumption: ty::Binder<'tcx, ty::ClauseKind<'tcx>>,
         then: impl FnOnce(&mut EvalCtxt<'_, 'tcx>) -> QueryResult<'tcx>,
     ) -> QueryResult<'tcx> {
         if let Some(projection_pred) = assumption.as_projection_clause() {
diff --git a/compiler/rustc_trait_selection/src/solve/trait_goals.rs b/compiler/rustc_trait_selection/src/solve/trait_goals.rs
index d9f24455a81..2a576ffe220 100644
--- a/compiler/rustc_trait_selection/src/solve/trait_goals.rs
+++ b/compiler/rustc_trait_selection/src/solve/trait_goals.rs
@@ -85,7 +85,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> {
     fn probe_and_match_goal_against_assumption(
         ecx: &mut EvalCtxt<'_, 'tcx>,
         goal: Goal<'tcx, Self>,
-        assumption: ty::Binder<'tcx, ty::Clause<'tcx>>,
+        assumption: ty::Binder<'tcx, ty::ClauseKind<'tcx>>,
         then: impl FnOnce(&mut EvalCtxt<'_, 'tcx>) -> QueryResult<'tcx>,
     ) -> QueryResult<'tcx> {
         if let Some(trait_clause) = assumption.as_trait_clause() {
diff --git a/compiler/rustc_trait_selection/src/traits/auto_trait.rs b/compiler/rustc_trait_selection/src/traits/auto_trait.rs
index 56fde8cd70c..71557e8930d 100644
--- a/compiler/rustc_trait_selection/src/traits/auto_trait.rs
+++ b/compiler/rustc_trait_selection/src/traits/auto_trait.rs
@@ -400,8 +400,8 @@ impl<'tcx> AutoTraitFinder<'tcx> {
         let mut should_add_new = true;
         user_computed_preds.retain(|&old_pred| {
             if let (
-                ty::PredicateKind::Clause(ty::Clause::Trait(new_trait)),
-                ty::PredicateKind::Clause(ty::Clause::Trait(old_trait)),
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(new_trait)),
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(old_trait)),
             ) = (new_pred.kind().skip_binder(), old_pred.kind().skip_binder())
             {
                 if new_trait.def_id() == old_trait.def_id() {
@@ -621,14 +621,14 @@ impl<'tcx> AutoTraitFinder<'tcx> {
 
             let bound_predicate = predicate.kind();
             match bound_predicate.skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(p)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(p)) => {
                     // Add this to `predicates` so that we end up calling `select`
                     // with it. If this predicate ends up being unimplemented,
                     // then `evaluate_predicates` will handle adding it the `ParamEnv`
                     // if possible.
                     predicates.push_back(bound_predicate.rebind(p));
                 }
-                ty::PredicateKind::Clause(ty::Clause::Projection(p)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(p)) => {
                     let p = bound_predicate.rebind(p);
                     debug!(
                         "evaluate_nested_obligations: examining projection predicate {:?}",
@@ -758,11 +758,11 @@ impl<'tcx> AutoTraitFinder<'tcx> {
                         }
                     }
                 }
-                ty::PredicateKind::Clause(ty::Clause::RegionOutlives(binder)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(binder)) => {
                     let binder = bound_predicate.rebind(binder);
                     selcx.infcx.region_outlives_predicate(&dummy_cause, binder)
                 }
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(binder)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(binder)) => {
                     let binder = bound_predicate.rebind(binder);
                     match (
                         binder.no_bound_vars(),
@@ -826,14 +826,14 @@ impl<'tcx> AutoTraitFinder<'tcx> {
                 // we start out with a `ParamEnv` with no inference variables,
                 // and these don't correspond to adding any new bounds to
                 // the `ParamEnv`.
-                ty::PredicateKind::Clause(ty::Clause::WellFormed(..))
-                | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
+                ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
                 | ty::PredicateKind::AliasRelate(..)
                 | ty::PredicateKind::ObjectSafe(..)
                 | ty::PredicateKind::ClosureKind(..)
                 | ty::PredicateKind::Subtype(..)
                 // FIXME(generic_const_exprs): you can absolutely add this as a where clauses
-                | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
                 | ty::PredicateKind::Coerce(..) => {}
                 ty::PredicateKind::TypeWellFormedFromEnv(..) => {
                     bug!("predicate should only exist in the environment: {bound_predicate:?}")
diff --git a/compiler/rustc_trait_selection/src/traits/const_evaluatable.rs b/compiler/rustc_trait_selection/src/traits/const_evaluatable.rs
index f8789b554b1..f9f242d29f6 100644
--- a/compiler/rustc_trait_selection/src/traits/const_evaluatable.rs
+++ b/compiler/rustc_trait_selection/src/traits/const_evaluatable.rs
@@ -207,7 +207,7 @@ fn satisfied_from_param_env<'tcx>(
 
     for pred in param_env.caller_bounds() {
         match pred.kind().skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(ce)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(ce)) => {
                 let b_ct = tcx.expand_abstract_consts(ce);
                 let mut v = Visitor { ct, infcx, param_env, single_match };
                 let _ = b_ct.visit_with(&mut v);
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs
index 7ab652761a4..1351d9bb257 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs
@@ -84,7 +84,7 @@ pub fn recompute_applicable_impls<'tcx>(
         tcx.predicates_of(obligation.cause.body_id.to_def_id()).instantiate_identity(tcx);
     for (pred, span) in elaborate(tcx, predicates.into_iter()) {
         let kind = pred.kind();
-        if let ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) = kind.skip_binder()
+        if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred)) = kind.skip_binder()
             && param_env_candidate_may_apply(kind.rebind(trait_pred))
         {
             if kind.rebind(trait_pred.trait_ref) == ty::Binder::dummy(ty::TraitRef::identity(tcx, trait_pred.def_id())) {
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
index 398ec28a426..75a92af714b 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
@@ -678,7 +678,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
 
                 let bound_predicate = obligation.predicate.kind();
                 match bound_predicate.skip_binder() {
-                    ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_predicate)) => {
                         let trait_predicate = bound_predicate.rebind(trait_predicate);
                         let mut trait_predicate = self.resolve_vars_if_possible(trait_predicate);
 
@@ -1021,8 +1021,8 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                         span_bug!(span, "coerce requirement gave wrong error: `{:?}`", predicate)
                     }
 
-                    ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..))
-                    | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..))
+                    | ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(..)) => {
                         span_bug!(
                             span,
                             "outlives clauses should not error outside borrowck. obligation: `{:?}`",
@@ -1030,7 +1030,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                         )
                     }
 
-                    ty::PredicateKind::Clause(ty::Clause::Projection(..)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::Projection(..)) => {
                         span_bug!(
                             span,
                             "projection clauses should be implied from elsewhere. obligation: `{:?}`",
@@ -1048,7 +1048,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                         self.report_closure_error(&obligation, closure_def_id, found_kind, kind)
                     }
 
-                    ty::PredicateKind::Clause(ty::Clause::WellFormed(ty)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(ty)) => {
                         match self.tcx.sess.opts.unstable_opts.trait_solver {
                             TraitSolver::Classic => {
                                 // WF predicates cannot themselves make
@@ -1069,7 +1069,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                         }
                     }
 
-                    ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..)) => {
                         // Errors for `ConstEvaluatable` predicates show up as
                         // `SelectionError::ConstEvalFailure`,
                         // not `Unimplemented`.
@@ -1103,7 +1103,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                         "AliasRelate predicate should never be the predicate cause of a SelectionError"
                     ),
 
-                    ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(ct, ty)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(ct, ty)) => {
                         let mut diag = self.tcx.sess.struct_span_err(
                             span,
                             format!("the constant `{}` is not of type `{}`", ct, ty),
@@ -1494,8 +1494,8 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         let bound_error = error.kind();
         let (cond, error) = match (cond.kind().skip_binder(), bound_error.skip_binder()) {
             (
-                ty::PredicateKind::Clause(ty::Clause::Trait(..)),
-                ty::PredicateKind::Clause(ty::Clause::Trait(error)),
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(..)),
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(error)),
             ) => (cond, bound_error.rebind(error)),
             _ => {
                 // FIXME: make this work in other cases too.
@@ -1505,7 +1505,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
 
         for pred in super::elaborate(self.tcx, std::iter::once(cond)) {
             let bound_predicate = pred.kind();
-            if let ty::PredicateKind::Clause(ty::Clause::Trait(implication)) =
+            if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(implication)) =
                 bound_predicate.skip_binder()
             {
                 let error = error.to_poly_trait_ref();
@@ -1603,7 +1603,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             // this can fail if the problem was higher-ranked, in which
             // cause I have no idea for a good error message.
             let bound_predicate = predicate.kind();
-            let (values, err) = if let ty::PredicateKind::Clause(ty::Clause::Projection(data)) =
+            let (values, err) = if let ty::PredicateKind::Clause(ty::ClauseKind::Projection(data)) =
                 bound_predicate.skip_binder()
             {
                 let data = self.instantiate_binder_with_fresh_vars(
@@ -1686,7 +1686,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             let mut diag = struct_span_err!(self.tcx.sess, obligation.cause.span, E0271, "{msg}");
 
             let secondary_span = (|| {
-                let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) =
+                let ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj)) =
                     predicate.kind().skip_binder()
                 else {
                     return None;
@@ -2199,7 +2199,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
 
         let bound_predicate = predicate.kind();
         let mut err = match bound_predicate.skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(data)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) => {
                 let trait_ref = bound_predicate.rebind(data.trait_ref);
                 debug!(?trait_ref);
 
@@ -2415,7 +2415,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                 err
             }
 
-            ty::PredicateKind::Clause(ty::Clause::WellFormed(arg)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg)) => {
                 // Same hacky approach as above to avoid deluging user
                 // with error messages.
                 if arg.references_error()
@@ -2453,7 +2453,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                     true,
                 )
             }
-            ty::PredicateKind::Clause(ty::Clause::Projection(data)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(data)) => {
                 if predicate.references_error() || self.tainted_by_errors().is_some() {
                     return;
                 }
@@ -2487,7 +2487,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                 }
             }
 
-            ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(data)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(data)) => {
                 if predicate.references_error() || self.tainted_by_errors().is_some() {
                     return;
                 }
@@ -2701,7 +2701,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         err: &mut Diagnostic,
         obligation: &PredicateObligation<'tcx>,
     ) {
-        let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) = obligation.predicate.kind().skip_binder() else { return; };
+        let ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) = obligation.predicate.kind().skip_binder() else { return; };
         let (ObligationCauseCode::BindingObligation(item_def_id, span)
         | ObligationCauseCode::ExprBindingObligation(item_def_id, span, ..))
             = *obligation.cause.code().peel_derives() else { return; };
@@ -3325,7 +3325,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         }
 
         match obligation.predicate.kind().skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(ct)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(ct)) => {
                 let ty::ConstKind::Unevaluated(uv) = ct.kind() else {
                     bug!("const evaluatable failed for non-unevaluated const `{ct:?}`");
                 };
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
index fcf813e3a39..966c4a7dcf3 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
@@ -920,7 +920,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             return false;
         }
 
-        if let ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) = obligation.predicate.kind().skip_binder()
+        if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred)) = obligation.predicate.kind().skip_binder()
             && Some(trait_pred.def_id()) == self.tcx.lang_items().sized_trait()
         {
             // Don't suggest calling to turn an unsized type into a sized type
@@ -1157,7 +1157,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                 }
                 ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => {
                     self.tcx.item_bounds(def_id).subst(self.tcx, substs).iter().find_map(|pred| {
-                        if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = pred.kind().skip_binder()
+                        if let ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj)) = pred.kind().skip_binder()
                         && Some(proj.projection_ty.def_id) == self.tcx.lang_items().fn_once_output()
                         // args tuple will always be substs[1]
                         && let ty::Tuple(args) = proj.projection_ty.substs.type_at(1).kind()
@@ -1201,7 +1201,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                         DefIdOrName::Name("type parameter")
                     };
                     param_env.caller_bounds().iter().find_map(|pred| {
-                        if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = pred.kind().skip_binder()
+                        if let ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj)) = pred.kind().skip_binder()
                         && Some(proj.projection_ty.def_id) == self.tcx.lang_items().fn_once_output()
                         && proj.projection_ty.self_ty() == found
                         // args tuple will always be substs[1]
@@ -1639,7 +1639,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             }
             // FIXME: account for associated `async fn`s.
             if let hir::Expr { span, kind: hir::ExprKind::Call(base, _), .. } = expr {
-                if let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) =
+                if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) =
                     obligation.predicate.kind().skip_binder()
                 {
                     err.span_label(*span, format!("this call returns `{}`", pred.self_ty()));
@@ -2001,7 +2001,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         if let ObligationCauseCode::ExprBindingObligation(def_id, _, _, idx) = cause
             && let predicates = self.tcx.predicates_of(def_id).instantiate_identity(self.tcx)
             && let Some(pred) = predicates.predicates.get(*idx)
-            && let ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) = pred.kind().skip_binder()
+            && let ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred)) = pred.kind().skip_binder()
             && self.tcx.is_fn_trait(trait_pred.def_id())
         {
             let expected_self =
@@ -2015,7 +2015,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             let other_pred = predicates.into_iter()
                 .enumerate()
                 .find(|(other_idx, (pred, _))| match pred.kind().skip_binder() {
-                    ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred))
+                    ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_pred))
                         if self.tcx.is_fn_trait(trait_pred.def_id())
                             && other_idx != idx
                             // Make sure that the self type matches
@@ -2141,7 +2141,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         // bound was introduced. At least one generator should be present for this diagnostic to be
         // modified.
         let (mut trait_ref, mut target_ty) = match obligation.predicate.kind().skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(p)) => (Some(p), Some(p.self_ty())),
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(p)) => (Some(p), Some(p.self_ty())),
             _ => (None, None),
         };
         let mut generator = None;
@@ -2816,7 +2816,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             ObligationCauseCode::SizedArgumentType(ty_span) => {
                 if let Some(span) = ty_span {
                     if let ty::PredicateKind::Clause(clause) = predicate.kind().skip_binder()
-                        && let ty::Clause::Trait(trait_pred) = clause
+                        && let ty::ClauseKind::Trait(trait_pred) = clause
                         && let ty::Dynamic(..) = trait_pred.self_ty().kind()
                     {
                         let span = if let Ok(snippet) = self.tcx.sess.source_map().span_to_snippet(span)
@@ -3597,7 +3597,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
 
         // Given the predicate `fn(&T): FnOnce<(U,)>`, extract `fn(&T)` and `(U,)`,
         // then suggest `Option::as_deref(_mut)` if `U` can deref to `T`
-        if let ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate { trait_ref, .. }))
+        if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(ty::TraitPredicate { trait_ref, .. }))
             = failed_pred.kind().skip_binder()
             && tcx.is_fn_trait(trait_ref.def_id)
             && let [self_ty, found_ty] = trait_ref.substs.as_slice()
@@ -3826,12 +3826,12 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             // in. For example, this would be what `Iterator::Item` is here.
             let ty_var = self.infcx.next_ty_var(origin);
             // This corresponds to `<ExprTy as Iterator>::Item = _`.
-            let projection = ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::Projection(
-                ty::ProjectionPredicate {
+            let projection = ty::Binder::dummy(ty::PredicateKind::Clause(
+                ty::ClauseKind::Projection(ty::ProjectionPredicate {
                     projection_ty: self.tcx.mk_alias_ty(proj.def_id, substs),
                     term: ty_var.into(),
-                },
-            )));
+                }),
+            ));
             let body_def_id = self.tcx.hir().enclosing_body_owner(body_id);
             // Add `<ExprTy as Iterator>::Item = _` obligation.
             ocx.register_obligation(Obligation::misc(
diff --git a/compiler/rustc_trait_selection/src/traits/fulfill.rs b/compiler/rustc_trait_selection/src/traits/fulfill.rs
index 6e4bda3df03..7c5260fc67b 100644
--- a/compiler/rustc_trait_selection/src/traits/fulfill.rs
+++ b/compiler/rustc_trait_selection/src/traits/fulfill.rs
@@ -333,7 +333,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> {
                 // Evaluation will discard candidates using the leak check.
                 // This means we need to pass it the bound version of our
                 // predicate.
-                ty::PredicateKind::Clause(ty::Clause::Trait(trait_ref)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_ref)) => {
                     let trait_obligation = obligation.with(infcx.tcx, binder.rebind(trait_ref));
 
                     self.process_trait_obligation(
@@ -342,7 +342,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> {
                         &mut pending_obligation.stalled_on,
                     )
                 }
-                ty::PredicateKind::Clause(ty::Clause::Projection(data)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(data)) => {
                     let project_obligation = obligation.with(infcx.tcx, binder.rebind(data));
 
                     self.process_projection_obligation(
@@ -351,15 +351,15 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> {
                         &mut pending_obligation.stalled_on,
                     )
                 }
-                ty::PredicateKind::Clause(ty::Clause::RegionOutlives(_))
-                | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(_))
-                | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
-                | ty::PredicateKind::Clause(ty::Clause::WellFormed(_))
+                ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(_))
+                | ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(_))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(_))
                 | ty::PredicateKind::ObjectSafe(_)
                 | ty::PredicateKind::ClosureKind(..)
                 | ty::PredicateKind::Subtype(_)
                 | ty::PredicateKind::Coerce(_)
-                | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
                 | ty::PredicateKind::ConstEquate(..) => {
                     let pred =
                         ty::Binder::dummy(infcx.instantiate_binder_with_placeholders(binder));
@@ -374,7 +374,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> {
                 }
             },
             Some(pred) => match pred {
-                ty::PredicateKind::Clause(ty::Clause::Trait(data)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) => {
                     let trait_obligation = obligation.with(infcx.tcx, Binder::dummy(data));
 
                     self.process_trait_obligation(
@@ -384,7 +384,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> {
                     )
                 }
 
-                ty::PredicateKind::Clause(ty::Clause::RegionOutlives(data)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(data)) => {
                     if infcx.considering_regions {
                         infcx.region_outlives_predicate(&obligation.cause, Binder::dummy(data));
                     }
@@ -392,7 +392,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> {
                     ProcessResult::Changed(vec![])
                 }
 
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(
                     t_a,
                     r_b,
                 ))) => {
@@ -402,7 +402,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> {
                     ProcessResult::Changed(vec![])
                 }
 
-                ty::PredicateKind::Clause(ty::Clause::Projection(ref data)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(ref data)) => {
                     let project_obligation = obligation.with(infcx.tcx, Binder::dummy(*data));
 
                     self.process_projection_obligation(
@@ -433,7 +433,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> {
                     }
                 }
 
-                ty::PredicateKind::Clause(ty::Clause::WellFormed(arg)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg)) => {
                     match wf::obligations(
                         self.selcx.infcx,
                         obligation.param_env,
@@ -498,7 +498,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> {
                     }
                 }
 
-                ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(uv)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(uv)) => {
                     match const_evaluatable::is_const_evaluatable(
                         self.selcx.infcx,
                         uv,
@@ -640,7 +640,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> {
                 ty::PredicateKind::AliasRelate(..) => {
                     bug!("AliasRelate is only used for new solver")
                 }
-                ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(ct, ty)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(ct, ty)) => {
                     match self.selcx.infcx.at(&obligation.cause, obligation.param_env).eq(
                         DefineOpaqueTypes::No,
                         ct.ty(),
diff --git a/compiler/rustc_trait_selection/src/traits/mod.rs b/compiler/rustc_trait_selection/src/traits/mod.rs
index db9cb82585f..15081d65682 100644
--- a/compiler/rustc_trait_selection/src/traits/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/mod.rs
@@ -357,7 +357,7 @@ pub fn normalize_param_env_or_error<'tcx>(
         .extract_if(|predicate| {
             matches!(
                 predicate.kind().skip_binder(),
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..))
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(..))
             )
         })
         .collect();
diff --git a/compiler/rustc_trait_selection/src/traits/object_safety.rs b/compiler/rustc_trait_selection/src/traits/object_safety.rs
index 8c42df6e012..499745473a2 100644
--- a/compiler/rustc_trait_selection/src/traits/object_safety.rs
+++ b/compiler/rustc_trait_selection/src/traits/object_safety.rs
@@ -282,11 +282,11 @@ fn predicate_references_self<'tcx>(
     let self_ty = tcx.types.self_param;
     let has_self_ty = |arg: &GenericArg<'tcx>| arg.walk().any(|arg| arg == self_ty.into());
     match predicate.kind().skip_binder() {
-        ty::PredicateKind::Clause(ty::Clause::Trait(ref data)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::Trait(ref data)) => {
             // In the case of a trait predicate, we can skip the "self" type.
             data.trait_ref.substs[1..].iter().any(has_self_ty).then_some(sp)
         }
-        ty::PredicateKind::Clause(ty::Clause::Projection(ref data)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::Projection(ref data)) => {
             // And similarly for projections. This should be redundant with
             // the previous check because any projection should have a
             // matching `Trait` predicate with the same inputs, but we do
@@ -304,21 +304,21 @@ fn predicate_references_self<'tcx>(
             // possible alternatives.
             data.projection_ty.substs[1..].iter().any(has_self_ty).then_some(sp)
         }
-        ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(_ct, ty)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(_ct, ty)) => {
             has_self_ty(&ty.into()).then_some(sp)
         }
 
         ty::PredicateKind::AliasRelate(..) => bug!("`AliasRelate` not allowed as assumption"),
 
-        ty::PredicateKind::Clause(ty::Clause::WellFormed(..))
+        ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..))
         | ty::PredicateKind::ObjectSafe(..)
-        | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..))
-        | ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..))
         | ty::PredicateKind::ClosureKind(..)
         | ty::PredicateKind::Subtype(..)
         | ty::PredicateKind::Coerce(..)
         // FIXME(generic_const_exprs): this can mention `Self`
-        | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
         | ty::PredicateKind::ConstEquate(..)
         | ty::PredicateKind::Ambiguous
         | ty::PredicateKind::TypeWellFormedFromEnv(..) => None,
@@ -353,19 +353,19 @@ fn generics_require_sized_self(tcx: TyCtxt<'_>, def_id: DefId) -> bool {
     let predicates = tcx.predicates_of(def_id);
     let predicates = predicates.instantiate_identity(tcx).predicates;
     elaborate(tcx, predicates.into_iter()).any(|pred| match pred.kind().skip_binder() {
-        ty::PredicateKind::Clause(ty::Clause::Trait(ref trait_pred)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::Trait(ref trait_pred)) => {
             trait_pred.def_id() == sized_def_id && trait_pred.self_ty().is_param(0)
         }
-        ty::PredicateKind::Clause(ty::Clause::Projection(..))
-        | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
+        ty::PredicateKind::Clause(ty::ClauseKind::Projection(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
         | ty::PredicateKind::Subtype(..)
         | ty::PredicateKind::Coerce(..)
-        | ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..))
-        | ty::PredicateKind::Clause(ty::Clause::WellFormed(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..))
         | ty::PredicateKind::ObjectSafe(..)
         | ty::PredicateKind::ClosureKind(..)
-        | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..))
-        | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
         | ty::PredicateKind::ConstEquate(..)
         | ty::PredicateKind::AliasRelate(..)
         | ty::PredicateKind::Ambiguous
@@ -592,7 +592,7 @@ fn virtual_call_violation_for_method<'tcx>(
         // only if the autotrait is one of the trait object's trait bounds, like
         // in `dyn Trait + AutoTrait`. This guarantees that trait objects only
         // implement auto traits if the underlying type does as well.
-        if let ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate {
+        if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(ty::TraitPredicate {
             trait_ref: pred_trait_ref,
             constness: ty::BoundConstness::NotConst,
             polarity: ty::ImplPolarity::Positive,
diff --git a/compiler/rustc_trait_selection/src/traits/project.rs b/compiler/rustc_trait_selection/src/traits/project.rs
index 8399fbfc5be..260805353dd 100644
--- a/compiler/rustc_trait_selection/src/traits/project.rs
+++ b/compiler/rustc_trait_selection/src/traits/project.rs
@@ -1649,7 +1649,7 @@ fn assemble_candidates_from_predicates<'cx, 'tcx>(
     let infcx = selcx.infcx;
     for predicate in env_predicates {
         let bound_predicate = predicate.kind();
-        if let ty::PredicateKind::Clause(ty::Clause::Projection(data)) =
+        if let ty::PredicateKind::Clause(ty::ClauseKind::Projection(data)) =
             predicate.kind().skip_binder()
         {
             let data = bound_predicate.rebind(data);
diff --git a/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs b/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs
index f8ceee50054..c93c30b7053 100644
--- a/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs
+++ b/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs
@@ -67,7 +67,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> {
         let mut _orig_values = OriginalQueryValues::default();
 
         let param_env = match obligation.predicate.kind().skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => {
                 // we ignore the value set to it.
                 let mut _constness = pred.constness;
                 obligation
diff --git a/compiler/rustc_trait_selection/src/traits/query/type_op/ascribe_user_type.rs b/compiler/rustc_trait_selection/src/traits/query/type_op/ascribe_user_type.rs
index 7405ca31cde..44671a07659 100644
--- a/compiler/rustc_trait_selection/src/traits/query/type_op/ascribe_user_type.rs
+++ b/compiler/rustc_trait_selection/src/traits/query/type_op/ascribe_user_type.rs
@@ -68,7 +68,7 @@ fn relate_mir_and_user_ty<'tcx>(
 
     // FIXME(#104764): We should check well-formedness before normalization.
     let predicate =
-        ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(user_ty.into())));
+        ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(user_ty.into())));
     ocx.register_obligation(Obligation::new(ocx.infcx.tcx, cause, param_env, predicate));
     Ok(())
 }
@@ -120,7 +120,7 @@ fn relate_mir_and_user_substs<'tcx>(
         let impl_self_ty = ocx.normalize(&cause, param_env, impl_self_ty);
 
         ocx.eq(&cause, param_env, self_ty, impl_self_ty)?;
-        let predicate = ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(
+        let predicate = ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(
             impl_self_ty.into(),
         )));
         ocx.register_obligation(Obligation::new(tcx, cause.clone(), param_env, predicate));
@@ -137,7 +137,8 @@ fn relate_mir_and_user_substs<'tcx>(
     // them?  This would only be relevant if some input
     // type were ill-formed but did not appear in `ty`,
     // which...could happen with normalization...
-    let predicate = ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(ty.into())));
+    let predicate =
+        ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(ty.into())));
     ocx.register_obligation(Obligation::new(tcx, cause, param_env, predicate));
     Ok(())
 }
diff --git a/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs b/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs
index 8761f4fea6c..7d0dc740cf5 100644
--- a/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs
+++ b/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs
@@ -108,7 +108,7 @@ pub fn compute_implied_outlives_bounds_inner<'tcx>(
             // learn anything new from those.
             if obligation.predicate.has_non_region_infer() {
                 match obligation.predicate.kind().skip_binder() {
-                    ty::PredicateKind::Clause(ty::Clause::Projection(..))
+                    ty::PredicateKind::Clause(ty::ClauseKind::Projection(..))
                     | ty::PredicateKind::AliasRelate(..) => {
                         ocx.register_obligation(obligation.clone());
                     }
@@ -121,33 +121,33 @@ pub fn compute_implied_outlives_bounds_inner<'tcx>(
                 Some(pred) => pred,
             };
             match pred {
-                ty::PredicateKind::Clause(ty::Clause::Trait(..))
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(..))
                 // FIXME(const_generics): Make sure that `<'a, 'b, const N: &'a &'b u32>` is sound
                 // if we ever support that
-                | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
                 | ty::PredicateKind::Subtype(..)
                 | ty::PredicateKind::Coerce(..)
-                | ty::PredicateKind::Clause(ty::Clause::Projection(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::Projection(..))
                 | ty::PredicateKind::ClosureKind(..)
                 | ty::PredicateKind::ObjectSafe(..)
-                | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
                 | ty::PredicateKind::ConstEquate(..)
                 | ty::PredicateKind::Ambiguous
                 | ty::PredicateKind::AliasRelate(..)
                 | ty::PredicateKind::TypeWellFormedFromEnv(..) => {}
 
                 // We need to search through *all* WellFormed predicates
-                ty::PredicateKind::Clause(ty::Clause::WellFormed(arg)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg)) => {
                     wf_args.push(arg);
                 }
 
                 // We need to register region relationships
-                ty::PredicateKind::Clause(ty::Clause::RegionOutlives(ty::OutlivesPredicate(
+                ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(ty::OutlivesPredicate(
                     r_a,
                     r_b,
                 ))) => outlives_bounds.push(ty::OutlivesPredicate(r_a.into(), r_b)),
 
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(
                     ty_a,
                     r_b,
                 ))) => outlives_bounds.push(ty::OutlivesPredicate(ty_a.into(), r_b)),
diff --git a/compiler/rustc_trait_selection/src/traits/query/type_op/prove_predicate.rs b/compiler/rustc_trait_selection/src/traits/query/type_op/prove_predicate.rs
index 47850bc330d..789ef647246 100644
--- a/compiler/rustc_trait_selection/src/traits/query/type_op/prove_predicate.rs
+++ b/compiler/rustc_trait_selection/src/traits/query/type_op/prove_predicate.rs
@@ -18,7 +18,7 @@ impl<'tcx> super::QueryTypeOp<'tcx> for ProvePredicate<'tcx> {
         // `&T`, accounts for about 60% percentage of the predicates
         // we have to prove. No need to canonicalize and all that for
         // such cases.
-        if let ty::PredicateKind::Clause(ty::Clause::Trait(trait_ref)) =
+        if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_ref)) =
             key.value.predicate.kind().skip_binder()
         {
             if let Some(sized_def_id) = tcx.lang_items().sized_trait() {
diff --git a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs
index f2dfa6921f4..0effeffaca6 100644
--- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs
@@ -402,7 +402,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
         };
 
         for &(predicate, _) in self.tcx().predicates_of(impl_def_id).predicates {
-            let ty::PredicateKind::Clause(ty::Clause::Trait(pred))
+            let ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred))
                 = predicate.kind().skip_binder() else { continue };
             if fn_ptr_trait != pred.trait_ref.def_id {
                 continue;
@@ -463,7 +463,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                 self.tcx().mk_predicate(obligation.predicate.map_bound(|mut pred| {
                     pred.trait_ref =
                         ty::TraitRef::new(self.tcx(), fn_ptr_trait, [pred.trait_ref.self_ty()]);
-                    ty::PredicateKind::Clause(ty::Clause::Trait(pred))
+                    ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred))
                 })),
             );
             if let Ok(r) = self.infcx.evaluate_obligation(&obligation) {
diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs
index ca2ae9b5235..0f0e3f1f16a 100644
--- a/compiler/rustc_trait_selection/src/traits/select/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs
@@ -643,7 +643,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
         ensure_sufficient_stack(|| {
             let bound_predicate = obligation.predicate.kind();
             match bound_predicate.skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(t)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(t)) => {
                     let t = bound_predicate.rebind(t);
                     debug_assert!(!t.has_escaping_bound_vars());
                     let obligation = obligation.with(self.tcx(), t);
@@ -674,7 +674,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                     }
                 }
 
-                ty::PredicateKind::Clause(ty::Clause::WellFormed(arg)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg)) => {
                     // So, there is a bit going on here. First, `WellFormed` predicates
                     // are coinductive, like trait predicates with auto traits.
                     // This means that we need to detect if we have recursively
@@ -760,7 +760,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                     }
                 }
 
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(pred)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(pred)) => {
                     // A global type with no free lifetimes or generic parameters
                     // outlives anything.
                     if pred.0.has_free_regions()
@@ -774,7 +774,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                     }
                 }
 
-                ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..)) => {
                     // We do not consider region relationships when evaluating trait matches.
                     Ok(EvaluatedToOkModuloRegions)
                 }
@@ -787,7 +787,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                     }
                 }
 
-                ty::PredicateKind::Clause(ty::Clause::Projection(data)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(data)) => {
                     let data = bound_predicate.rebind(data);
                     let project_obligation = obligation.with(self.tcx(), data);
                     match project::poly_project_and_unify_type(self, &project_obligation) {
@@ -862,7 +862,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                     }
                 }
 
-                ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(uv)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(uv)) => {
                     match const_evaluatable::is_const_evaluatable(
                         self.infcx,
                         uv,
@@ -974,7 +974,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                     bug!("AliasRelate is only used for new solver")
                 }
                 ty::PredicateKind::Ambiguous => Ok(EvaluatedToAmbig),
-                ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(ct, ty)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(ct, ty)) => {
                     match self.infcx.at(&obligation.cause, obligation.param_env).eq(
                         DefineOpaqueTypes::No,
                         ct.ty(),
@@ -1668,7 +1668,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
             .enumerate()
             .filter_map(|(idx, bound)| {
                 let bound_predicate = bound.kind();
-                if let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) =
+                if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) =
                     bound_predicate.skip_binder()
                 {
                     let bound = bound_predicate.rebind(pred.trait_ref);
diff --git a/compiler/rustc_trait_selection/src/traits/specialize/mod.rs b/compiler/rustc_trait_selection/src/traits/specialize/mod.rs
index 9a4b72013b8..68ba8ceaa43 100644
--- a/compiler/rustc_trait_selection/src/traits/specialize/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/specialize/mod.rs
@@ -521,7 +521,8 @@ pub(crate) fn to_pretty_impl_header(tcx: TyCtxt<'_>, impl_def_id: DefId) -> Opti
                 });
 
                 p = tcx.mk_predicate(
-                    new_trait_pred.map_bound(|p| ty::PredicateKind::Clause(ty::Clause::Trait(p))),
+                    new_trait_pred
+                        .map_bound(|p| ty::PredicateKind::Clause(ty::ClauseKind::Trait(p))),
                 )
             }
         }
diff --git a/compiler/rustc_trait_selection/src/traits/wf.rs b/compiler/rustc_trait_selection/src/traits/wf.rs
index 676978fabe4..e80d413d976 100644
--- a/compiler/rustc_trait_selection/src/traits/wf.rs
+++ b/compiler/rustc_trait_selection/src/traits/wf.rs
@@ -142,29 +142,32 @@ pub fn predicate_obligations<'tcx>(
 
     // It's ok to skip the binder here because wf code is prepared for it
     match predicate.kind().skip_binder() {
-        ty::PredicateKind::Clause(ty::Clause::Trait(t)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::Trait(t)) => {
             wf.compute_trait_pred(&t, Elaborate::None);
         }
-        ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) => {}
-        ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(ty, _reg))) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..)) => {}
+        ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(
+            ty,
+            _reg,
+        ))) => {
             wf.compute(ty.into());
         }
-        ty::PredicateKind::Clause(ty::Clause::Projection(t)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::Projection(t)) => {
             wf.compute_projection(t.projection_ty);
             wf.compute(match t.term.unpack() {
                 ty::TermKind::Ty(ty) => ty.into(),
                 ty::TermKind::Const(c) => c.into(),
             })
         }
-        ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(ct, ty)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(ct, ty)) => {
             wf.compute(ct.into());
             wf.compute(ty.into());
         }
-        ty::PredicateKind::Clause(ty::Clause::WellFormed(arg)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg)) => {
             wf.compute(arg);
         }
 
-        ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(ct)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(ct)) => {
             wf.compute(ct.into());
         }
 
@@ -247,7 +250,7 @@ fn extend_cause_with_original_assoc_item_obligation<'tcx>(
 
     // It is fine to skip the binder as we don't care about regions here.
     match pred.kind().skip_binder() {
-        ty::PredicateKind::Clause(ty::Clause::Projection(proj)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj)) => {
             // The obligation comes not from the current `impl` nor the `trait` being implemented,
             // but rather from a "second order" obligation, where an associated type has a
             // projection coming from another associated type. See
@@ -264,7 +267,7 @@ fn extend_cause_with_original_assoc_item_obligation<'tcx>(
                 cause.span = impl_item_span;
             }
         }
-        ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => {
             // An associated item obligation born out of the `trait` failed to be met. An example
             // can be seen in `ui/associated-types/point-at-type-on-obligation-failure-2.rs`.
             debug!("extended_cause_with_original_assoc_item_obligation trait proj {:?}", pred);
@@ -386,7 +389,9 @@ impl<'a, 'tcx> WfPredicates<'a, 'tcx> {
                         cause,
                         depth,
                         param_env,
-                        ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(arg))),
+                        ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(
+                            arg,
+                        ))),
                     )
                 }),
         );
@@ -478,7 +483,9 @@ impl<'a, 'tcx> WfPredicates<'a, 'tcx> {
                         cause.clone(),
                         depth,
                         param_env,
-                        ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(arg))),
+                        ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(
+                            arg,
+                        ))),
                     )
                 }),
         );
@@ -522,7 +529,7 @@ impl<'a, 'tcx> WfPredicates<'a, 'tcx> {
                                 self.out.extend(obligations);
 
                                 let predicate = ty::Binder::dummy(ty::PredicateKind::Clause(
-                                    ty::Clause::ConstEvaluatable(ct),
+                                    ty::ClauseKind::ConstEvaluatable(ct),
                                 ));
                                 let cause = self.cause(traits::WellFormed(None));
                                 self.out.push(traits::Obligation::with_depth(
@@ -543,7 +550,7 @@ impl<'a, 'tcx> WfPredicates<'a, 'tcx> {
                                 self.recursion_depth,
                                 self.param_env,
                                 ty::Binder::dummy(ty::PredicateKind::Clause(
-                                    ty::Clause::WellFormed(ct.into()),
+                                    ty::ClauseKind::WellFormed(ct.into()),
                                 )),
                             ));
                         }
@@ -556,7 +563,7 @@ impl<'a, 'tcx> WfPredicates<'a, 'tcx> {
                             // we would not be proving bounds we should.
 
                             let predicate = ty::Binder::dummy(ty::PredicateKind::Clause(
-                                ty::Clause::ConstEvaluatable(ct),
+                                ty::ClauseKind::ConstEvaluatable(ct),
                             ));
                             let cause = self.cause(traits::WellFormed(None));
                             self.out.push(traits::Obligation::with_depth(
@@ -658,9 +665,9 @@ impl<'a, 'tcx> WfPredicates<'a, 'tcx> {
                             cause,
                             depth,
                             param_env,
-                            ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::TypeOutlives(
-                                ty::OutlivesPredicate(rty, r),
-                            ))),
+                            ty::Binder::dummy(ty::PredicateKind::Clause(
+                                ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(rty, r)),
+                            )),
                         ));
                     }
                 }
@@ -788,7 +795,7 @@ impl<'a, 'tcx> WfPredicates<'a, 'tcx> {
                         cause,
                         self.recursion_depth,
                         param_env,
-                        ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::WellFormed(
+                        ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(
                             ty.into(),
                         ))),
                     ));
@@ -970,21 +977,21 @@ pub(crate) fn required_region_bounds<'tcx>(
         .filter_map(|pred| {
             debug!(?pred);
             match pred.kind().skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Projection(..))
-                | ty::PredicateKind::Clause(ty::Clause::Trait(..))
-                | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::Trait(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
                 | ty::PredicateKind::Subtype(..)
                 | ty::PredicateKind::Coerce(..)
-                | ty::PredicateKind::Clause(ty::Clause::WellFormed(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..))
                 | ty::PredicateKind::ObjectSafe(..)
                 | ty::PredicateKind::ClosureKind(..)
-                | ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..))
-                | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
                 | ty::PredicateKind::ConstEquate(..)
                 | ty::PredicateKind::Ambiguous
                 | ty::PredicateKind::AliasRelate(..)
                 | ty::PredicateKind::TypeWellFormedFromEnv(..) => None,
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(
                     ref t,
                     ref r,
                 ))) => {
diff --git a/compiler/rustc_traits/src/chalk/lowering.rs b/compiler/rustc_traits/src/chalk/lowering.rs
index 1d4219bc0c0..aefe57e0ddf 100644
--- a/compiler/rustc_traits/src/chalk/lowering.rs
+++ b/compiler/rustc_traits/src/chalk/lowering.rs
@@ -96,12 +96,12 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::InEnvironment<chalk_ir::Goal<RustInterner<'
                 ty::PredicateKind::TypeWellFormedFromEnv(ty) => {
                     chalk_ir::DomainGoal::FromEnv(chalk_ir::FromEnv::Ty(ty.lower_into(interner)))
                 }
-                ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate)) => {
                     chalk_ir::DomainGoal::FromEnv(chalk_ir::FromEnv::Trait(
                         predicate.trait_ref.lower_into(interner),
                     ))
                 }
-                ty::PredicateKind::Clause(ty::Clause::RegionOutlives(predicate)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(predicate)) => {
                     chalk_ir::DomainGoal::Holds(chalk_ir::WhereClause::LifetimeOutlives(
                         chalk_ir::LifetimeOutlives {
                             a: predicate.0.lower_into(interner),
@@ -109,7 +109,7 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::InEnvironment<chalk_ir::Goal<RustInterner<'
                         },
                     ))
                 }
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(predicate)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(predicate)) => {
                     chalk_ir::DomainGoal::Holds(chalk_ir::WhereClause::TypeOutlives(
                         chalk_ir::TypeOutlives {
                             ty: predicate.0.lower_into(interner),
@@ -117,12 +117,12 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::InEnvironment<chalk_ir::Goal<RustInterner<'
                         },
                     ))
                 }
-                ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Projection(predicate)) => {
                     chalk_ir::DomainGoal::Holds(chalk_ir::WhereClause::AliasEq(
                         predicate.lower_into(interner),
                     ))
                 }
-                ty::PredicateKind::Clause(ty::Clause::WellFormed(arg)) => match arg.unpack() {
+                ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg)) => match arg.unpack() {
                     ty::GenericArgKind::Type(ty) => chalk_ir::DomainGoal::WellFormed(
                         chalk_ir::WellFormed::Ty(ty.lower_into(interner)),
                     ),
@@ -132,12 +132,12 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::InEnvironment<chalk_ir::Goal<RustInterner<'
                     )),
                 },
                 ty::PredicateKind::ObjectSafe(..)
-                | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
                 | ty::PredicateKind::AliasRelate(..)
                 | ty::PredicateKind::ClosureKind(..)
                 | ty::PredicateKind::Subtype(..)
                 | ty::PredicateKind::Coerce(..)
-                | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
                 | ty::PredicateKind::Ambiguous
                 | ty::PredicateKind::ConstEquate(..) => bug!("unexpected predicate {}", predicate),
             };
@@ -166,12 +166,12 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::GoalData<RustInterner<'tcx>>> for ty::Predi
             collect_bound_vars(interner, interner.tcx, self.kind());
 
         let value = match predicate {
-            ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate)) => {
                 chalk_ir::GoalData::DomainGoal(chalk_ir::DomainGoal::Holds(
                     chalk_ir::WhereClause::Implemented(predicate.trait_ref.lower_into(interner)),
                 ))
             }
-            ty::PredicateKind::Clause(ty::Clause::RegionOutlives(predicate)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(predicate)) => {
                 chalk_ir::GoalData::DomainGoal(chalk_ir::DomainGoal::Holds(
                     chalk_ir::WhereClause::LifetimeOutlives(chalk_ir::LifetimeOutlives {
                         a: predicate.0.lower_into(interner),
@@ -179,7 +179,7 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::GoalData<RustInterner<'tcx>>> for ty::Predi
                     }),
                 ))
             }
-            ty::PredicateKind::Clause(ty::Clause::TypeOutlives(predicate)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(predicate)) => {
                 chalk_ir::GoalData::DomainGoal(chalk_ir::DomainGoal::Holds(
                     chalk_ir::WhereClause::TypeOutlives(chalk_ir::TypeOutlives {
                         ty: predicate.0.lower_into(interner),
@@ -187,12 +187,12 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::GoalData<RustInterner<'tcx>>> for ty::Predi
                     }),
                 ))
             }
-            ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(predicate)) => {
                 chalk_ir::GoalData::DomainGoal(chalk_ir::DomainGoal::Holds(
                     chalk_ir::WhereClause::AliasEq(predicate.lower_into(interner)),
                 ))
             }
-            ty::PredicateKind::Clause(ty::Clause::WellFormed(arg)) => match arg.unpack() {
+            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(arg)) => match arg.unpack() {
                 GenericArgKind::Type(ty) => match ty.kind() {
                     // FIXME(chalk): In Chalk, a placeholder is WellFormed if it
                     // `FromEnv`. However, when we "lower" Params, we don't update
@@ -228,10 +228,10 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::GoalData<RustInterner<'tcx>>> for ty::Predi
             // We can defer this, but ultimately we'll want to express
             // some of these in terms of chalk operations.
             ty::PredicateKind::ClosureKind(..)
-            | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
+            | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
             | ty::PredicateKind::AliasRelate(..)
             | ty::PredicateKind::Coerce(..)
-            | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+            | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
             | ty::PredicateKind::Ambiguous
             | ty::PredicateKind::ConstEquate(..) => {
                 chalk_ir::GoalData::All(chalk_ir::Goals::empty(interner))
@@ -654,33 +654,33 @@ impl<'tcx> LowerInto<'tcx, Option<chalk_ir::QuantifiedWhereClause<RustInterner<'
         let (predicate, binders, _named_regions) =
             collect_bound_vars(interner, interner.tcx, self.kind());
         let value = match predicate {
-            ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate)) => {
                 Some(chalk_ir::WhereClause::Implemented(predicate.trait_ref.lower_into(interner)))
             }
-            ty::PredicateKind::Clause(ty::Clause::RegionOutlives(predicate)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(predicate)) => {
                 Some(chalk_ir::WhereClause::LifetimeOutlives(chalk_ir::LifetimeOutlives {
                     a: predicate.0.lower_into(interner),
                     b: predicate.1.lower_into(interner),
                 }))
             }
-            ty::PredicateKind::Clause(ty::Clause::TypeOutlives(predicate)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(predicate)) => {
                 Some(chalk_ir::WhereClause::TypeOutlives(chalk_ir::TypeOutlives {
                     ty: predicate.0.lower_into(interner),
                     lifetime: predicate.1.lower_into(interner),
                 }))
             }
-            ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(predicate)) => {
                 Some(chalk_ir::WhereClause::AliasEq(predicate.lower_into(interner)))
             }
-            ty::PredicateKind::Clause(ty::Clause::WellFormed(_ty)) => None,
-            ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..)) => None,
+            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(_ty)) => None,
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..)) => None,
 
             ty::PredicateKind::ObjectSafe(..)
             | ty::PredicateKind::AliasRelate(..)
             | ty::PredicateKind::ClosureKind(..)
             | ty::PredicateKind::Subtype(..)
             | ty::PredicateKind::Coerce(..)
-            | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+            | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
             | ty::PredicateKind::ConstEquate(..)
             | ty::PredicateKind::Ambiguous
             | ty::PredicateKind::TypeWellFormedFromEnv(..) => {
@@ -792,7 +792,7 @@ impl<'tcx> LowerInto<'tcx, Option<chalk_solve::rust_ir::QuantifiedInlineBound<Ru
         let (predicate, binders, _named_regions) =
             collect_bound_vars(interner, interner.tcx, self.kind());
         match predicate {
-            ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate)) => {
                 Some(chalk_ir::Binders::new(
                     binders,
                     chalk_solve::rust_ir::InlineBound::TraitBound(
@@ -800,23 +800,23 @@ impl<'tcx> LowerInto<'tcx, Option<chalk_solve::rust_ir::QuantifiedInlineBound<Ru
                     ),
                 ))
             }
-            ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(predicate)) => {
                 Some(chalk_ir::Binders::new(
                     binders,
                     chalk_solve::rust_ir::InlineBound::AliasEqBound(predicate.lower_into(interner)),
                 ))
             }
-            ty::PredicateKind::Clause(ty::Clause::TypeOutlives(_predicate)) => None,
-            ty::PredicateKind::Clause(ty::Clause::WellFormed(_ty)) => None,
-            ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..)) => None,
+            ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(_predicate)) => None,
+            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(_ty)) => None,
+            ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..)) => None,
 
-            ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..))
+            ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..))
             | ty::PredicateKind::AliasRelate(..)
             | ty::PredicateKind::ObjectSafe(..)
             | ty::PredicateKind::ClosureKind(..)
             | ty::PredicateKind::Subtype(..)
             | ty::PredicateKind::Coerce(..)
-            | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+            | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
             | ty::PredicateKind::ConstEquate(..)
             | ty::PredicateKind::Ambiguous
             | ty::PredicateKind::TypeWellFormedFromEnv(..) => {
diff --git a/compiler/rustc_traits/src/normalize_erasing_regions.rs b/compiler/rustc_traits/src/normalize_erasing_regions.rs
index 7f6d53fe860..96896526a12 100644
--- a/compiler/rustc_traits/src/normalize_erasing_regions.rs
+++ b/compiler/rustc_traits/src/normalize_erasing_regions.rs
@@ -56,18 +56,18 @@ fn try_normalize_after_erasing_regions<'tcx, T: TypeFoldable<TyCtxt<'tcx>> + Par
 
 fn not_outlives_predicate(p: ty::Predicate<'_>) -> bool {
     match p.kind().skip_binder() {
-        ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..))
-        | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..)) => false,
-        ty::PredicateKind::Clause(ty::Clause::Trait(..))
-        | ty::PredicateKind::Clause(ty::Clause::Projection(..))
-        | ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..))
+        ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(..)) => false,
+        ty::PredicateKind::Clause(ty::ClauseKind::Trait(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::Projection(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..))
         | ty::PredicateKind::AliasRelate(..)
-        | ty::PredicateKind::Clause(ty::Clause::WellFormed(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..))
         | ty::PredicateKind::ObjectSafe(..)
         | ty::PredicateKind::ClosureKind(..)
         | ty::PredicateKind::Subtype(..)
         | ty::PredicateKind::Coerce(..)
-        | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+        | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
         | ty::PredicateKind::ConstEquate(..)
         | ty::PredicateKind::Ambiguous
         | ty::PredicateKind::TypeWellFormedFromEnv(..) => true,
diff --git a/src/librustdoc/clean/auto_trait.rs b/src/librustdoc/clean/auto_trait.rs
index c8a40e01501..492b0b79557 100644
--- a/src/librustdoc/clean/auto_trait.rs
+++ b/src/librustdoc/clean/auto_trait.rs
@@ -321,10 +321,10 @@ where
         let bound_predicate = pred.kind();
         let tcx = self.cx.tcx;
         let regions = match bound_predicate.skip_binder() {
-            ty::PredicateKind::Clause(ty::Clause::Trait(poly_trait_pred)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Trait(poly_trait_pred)) => {
                 tcx.collect_referenced_late_bound_regions(&bound_predicate.rebind(poly_trait_pred))
             }
-            ty::PredicateKind::Clause(ty::Clause::Projection(poly_proj_pred)) => {
+            ty::PredicateKind::Clause(ty::ClauseKind::Projection(poly_proj_pred)) => {
                 tcx.collect_referenced_late_bound_regions(&bound_predicate.rebind(poly_proj_pred))
             }
             _ => return FxHashSet::default(),
@@ -449,7 +449,7 @@ where
             .filter(|p| {
                 !orig_bounds.contains(p)
                     || match p.kind().skip_binder() {
-                        ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => {
+                        ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => {
                             pred.def_id() == sized_trait
                         }
                         _ => false,
diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index 29c11e1f335..36eac5790b8 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -331,22 +331,22 @@ pub(crate) fn clean_predicate<'tcx>(
 ) -> Option<WherePredicate> {
     let bound_predicate = predicate.kind();
     match bound_predicate.skip_binder() {
-        ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => {
             clean_poly_trait_predicate(bound_predicate.rebind(pred), cx)
         }
-        ty::PredicateKind::Clause(ty::Clause::RegionOutlives(pred)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::RegionOutlives(pred)) => {
             clean_region_outlives_predicate(pred)
         }
-        ty::PredicateKind::Clause(ty::Clause::TypeOutlives(pred)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(pred)) => {
             clean_type_outlives_predicate(bound_predicate.rebind(pred), cx)
         }
-        ty::PredicateKind::Clause(ty::Clause::Projection(pred)) => {
+        ty::PredicateKind::Clause(ty::ClauseKind::Projection(pred)) => {
             Some(clean_projection_predicate(bound_predicate.rebind(pred), cx))
         }
         // FIXME(generic_const_exprs): should this do something?
-        ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..)) => None,
-        ty::PredicateKind::Clause(ty::Clause::WellFormed(..)) => None,
-        ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(..)) => None,
+        ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..)) => None,
+        ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..)) => None,
+        ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..)) => None,
 
         ty::PredicateKind::Subtype(..)
         | ty::PredicateKind::AliasRelate(..)
@@ -805,20 +805,19 @@ fn clean_ty_generics<'tcx>(
             let param_idx = (|| {
                 let bound_p = p.kind();
                 match bound_p.skip_binder() {
-                    ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => {
                         if let ty::Param(param) = pred.self_ty().kind() {
                             return Some(param.index);
                         }
                     }
-                    ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(
-                        ty,
-                        _reg,
-                    ))) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(
+                        ty::OutlivesPredicate(ty, _reg),
+                    )) => {
                         if let ty::Param(param) = ty.kind() {
                             return Some(param.index);
                         }
                     }
-                    ty::PredicateKind::Clause(ty::Clause::Projection(p)) => {
+                    ty::PredicateKind::Clause(ty::ClauseKind::Projection(p)) => {
                         if let ty::Param(param) = p.projection_ty.self_ty().kind() {
                             projection = Some(bound_p.rebind(p));
                             return Some(param.index);
@@ -2114,10 +2113,10 @@ fn clean_middle_opaque_bounds<'tcx>(
         .filter_map(|bound| {
             let bound_predicate = bound.kind();
             let trait_ref = match bound_predicate.skip_binder() {
-                ty::PredicateKind::Clause(ty::Clause::Trait(tr)) => {
+                ty::PredicateKind::Clause(ty::ClauseKind::Trait(tr)) => {
                     bound_predicate.rebind(tr.trait_ref)
                 }
-                ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(
+                ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(
                     _ty,
                     reg,
                 ))) => {
@@ -2137,7 +2136,7 @@ fn clean_middle_opaque_bounds<'tcx>(
             let bindings: ThinVec<_> = bounds
                 .iter()
                 .filter_map(|bound| {
-                    if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) =
+                    if let ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj)) =
                         bound.kind().skip_binder()
                     {
                         if proj.projection_ty.trait_ref(cx.tcx) == trait_ref.skip_binder() {
diff --git a/src/librustdoc/clean/simplify.rs b/src/librustdoc/clean/simplify.rs
index 3c72b0bf9f2..a8221cc9449 100644
--- a/src/librustdoc/clean/simplify.rs
+++ b/src/librustdoc/clean/simplify.rs
@@ -128,7 +128,9 @@ fn trait_is_same_or_supertrait(cx: &DocContext<'_>, child: DefId, trait_: DefId)
         .predicates
         .iter()
         .filter_map(|(pred, _)| {
-            if let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) = pred.kind().skip_binder() {
+            if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) =
+                pred.kind().skip_binder()
+            {
                 if pred.trait_ref.self_ty() == self_ty { Some(pred.def_id()) } else { None }
             } else {
                 None
diff --git a/src/tools/clippy/clippy_lints/src/dereference.rs b/src/tools/clippy/clippy_lints/src/dereference.rs
index dbaf6aaa853..ee6aef71980 100644
--- a/src/tools/clippy/clippy_lints/src/dereference.rs
+++ b/src/tools/clippy/clippy_lints/src/dereference.rs
@@ -26,7 +26,7 @@ use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::mir::{Rvalue, StatementKind};
 use rustc_middle::ty::adjustment::{Adjust, Adjustment, AutoBorrow, AutoBorrowMutability};
 use rustc_middle::ty::{
-    self, Binder, BoundVariableKind, Clause, EarlyBinder, FnSig, GenericArgKind, List, ParamEnv, ParamTy,
+    self, Binder, BoundVariableKind, ClauseKind, EarlyBinder, FnSig, GenericArgKind, List, ParamEnv, ParamTy,
     PredicateKind, ProjectionPredicate, Ty, TyCtxt, TypeVisitableExt, TypeckResults,
 };
 use rustc_session::{declare_tool_lint, impl_lint_pass};
@@ -1133,7 +1133,7 @@ fn needless_borrow_impl_arg_position<'tcx>(
     let projection_predicates = predicates
         .iter()
         .filter_map(|predicate| {
-            if let PredicateKind::Clause(Clause::Projection(projection_predicate)) = predicate.kind().skip_binder() {
+            if let PredicateKind::Clause(ClauseKind::Projection(projection_predicate)) = predicate.kind().skip_binder() {
                 Some(projection_predicate)
             } else {
                 None
@@ -1147,7 +1147,7 @@ fn needless_borrow_impl_arg_position<'tcx>(
     if predicates
         .iter()
         .filter_map(|predicate| {
-            if let PredicateKind::Clause(Clause::Trait(trait_predicate)) = predicate.kind().skip_binder()
+            if let PredicateKind::Clause(ClauseKind::Trait(trait_predicate)) = predicate.kind().skip_binder()
                 && trait_predicate.trait_ref.self_ty() == param_ty.to_ty(cx.tcx)
             {
                 Some(trait_predicate.trait_ref.def_id)
@@ -1209,7 +1209,7 @@ fn needless_borrow_impl_arg_position<'tcx>(
         }
 
         predicates.iter().all(|predicate| {
-            if let PredicateKind::Clause(Clause::Trait(trait_predicate)) = predicate.kind().skip_binder()
+            if let PredicateKind::Clause(ClauseKind::Trait(trait_predicate)) = predicate.kind().skip_binder()
                 && cx.tcx.is_diagnostic_item(sym::IntoIterator, trait_predicate.trait_ref.def_id)
                 && let ty::Param(param_ty) = trait_predicate.self_ty().kind()
                 && let GenericArgKind::Type(ty) = substs_with_referent_ty[param_ty.index as usize].unpack()
diff --git a/src/tools/clippy/clippy_lints/src/derive.rs b/src/tools/clippy/clippy_lints/src/derive.rs
index 8f5d319cd4f..8d84e756ff8 100644
--- a/src/tools/clippy/clippy_lints/src/derive.rs
+++ b/src/tools/clippy/clippy_lints/src/derive.rs
@@ -14,7 +14,7 @@ use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::hir::nested_filter;
 use rustc_middle::traits::Reveal;
 use rustc_middle::ty::{
-    self, Binder, BoundConstness, Clause, GenericArgKind, GenericParamDefKind, ImplPolarity, ParamEnv, PredicateKind,
+    self, Binder, BoundConstness, ClauseKind, GenericArgKind, GenericParamDefKind, ImplPolarity, ParamEnv, PredicateKind,
     TraitPredicate, Ty, TyCtxt,
 };
 use rustc_session::{declare_lint_pass, declare_tool_lint};
@@ -503,7 +503,7 @@ fn param_env_for_derived_eq(tcx: TyCtxt<'_>, did: DefId, eq_trait_id: DefId) ->
 
     let ty_predicates = tcx.predicates_of(did).predicates;
     for (p, _) in ty_predicates {
-        if let PredicateKind::Clause(Clause::Trait(p)) = p.kind().skip_binder()
+        if let PredicateKind::Clause(ClauseKind::Trait(p)) = p.kind().skip_binder()
             && p.trait_ref.def_id == eq_trait_id
             && let ty::Param(self_ty) = p.trait_ref.self_ty().kind()
             && p.constness == BoundConstness::NotConst
@@ -516,7 +516,7 @@ fn param_env_for_derived_eq(tcx: TyCtxt<'_>, did: DefId, eq_trait_id: DefId) ->
     ParamEnv::new(
         tcx.mk_predicates_from_iter(ty_predicates.iter().map(|&(p, _)| p).chain(
             params.iter().filter(|&&(_, needs_eq)| needs_eq).map(|&(param, _)| {
-                tcx.mk_predicate(Binder::dummy(PredicateKind::Clause(Clause::Trait(TraitPredicate {
+                tcx.mk_predicate(Binder::dummy(PredicateKind::Clause(ClauseKind::Trait(TraitPredicate {
                     trait_ref: ty::TraitRef::new(tcx, eq_trait_id, [tcx.mk_param_from_def(param)]),
                     constness: BoundConstness::NotConst,
                     polarity: ImplPolarity::Positive,
diff --git a/src/tools/clippy/clippy_lints/src/future_not_send.rs b/src/tools/clippy/clippy_lints/src/future_not_send.rs
index d1314795f58..a391b76910a 100644
--- a/src/tools/clippy/clippy_lints/src/future_not_send.rs
+++ b/src/tools/clippy/clippy_lints/src/future_not_send.rs
@@ -4,7 +4,7 @@ use rustc_hir::intravisit::FnKind;
 use rustc_hir::{Body, FnDecl};
 use rustc_infer::infer::TyCtxtInferExt;
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty::{self, AliasTy, Clause, PredicateKind};
+use rustc_middle::ty::{self, AliasTy, ClauseKind, PredicateKind};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::def_id::LocalDefId;
 use rustc_span::{sym, Span};
@@ -93,7 +93,7 @@ impl<'tcx> LateLintPass<'tcx> for FutureNotSend {
                                 infcx
                                     .err_ctxt()
                                     .maybe_note_obligation_cause_for_async_await(db, &obligation);
-                                if let PredicateKind::Clause(Clause::Trait(trait_pred)) =
+                                if let PredicateKind::Clause(ClauseKind::Trait(trait_pred)) =
                                     obligation.predicate.kind().skip_binder()
                                 {
                                     db.note(format!(
diff --git a/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs b/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs
index 99f810c27cf..cf85d3174db 100644
--- a/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs
@@ -16,7 +16,7 @@ use rustc_hir::{
 };
 use rustc_lint::LateContext;
 use rustc_middle::hir::nested_filter;
-use rustc_middle::ty::{self, AssocKind, Clause, EarlyBinder, GenericArg, GenericArgKind, PredicateKind, Ty};
+use rustc_middle::ty::{self, AssocKind, ClauseKind, EarlyBinder, GenericArg, GenericArgKind, PredicateKind, Ty};
 use rustc_span::symbol::Ident;
 use rustc_span::{sym, Span, Symbol};
 
@@ -175,7 +175,7 @@ fn check_collect_into_intoiterator<'tcx>(
                 .caller_bounds()
                 .into_iter()
                 .filter_map(|p| {
-                    if let PredicateKind::Clause(Clause::Trait(t)) = p.kind().skip_binder()
+                    if let PredicateKind::Clause(ClauseKind::Trait(t)) = p.kind().skip_binder()
                             && cx.tcx.is_diagnostic_item(sym::IntoIterator,t.trait_ref.def_id) {
                                 Some(t.self_ty())
                             } else {
diff --git a/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs b/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs
index 309d2157b76..06fa95cd657 100644
--- a/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs
@@ -14,7 +14,7 @@ use rustc_lint::LateContext;
 use rustc_middle::mir::Mutability;
 use rustc_middle::ty::adjustment::{Adjust, Adjustment, OverloadedDeref};
 use rustc_middle::ty::subst::{GenericArg, GenericArgKind, SubstsRef};
-use rustc_middle::ty::{self, Clause, EarlyBinder, ParamTy, PredicateKind, ProjectionPredicate, TraitPredicate, Ty};
+use rustc_middle::ty::{self, ClauseKind, EarlyBinder, ParamTy, PredicateKind, ProjectionPredicate, TraitPredicate, Ty};
 use rustc_span::{sym, Symbol};
 use rustc_trait_selection::traits::{query::evaluate_obligation::InferCtxtExt as _, Obligation, ObligationCause};
 
@@ -345,12 +345,12 @@ fn get_input_traits_and_projections<'tcx>(
     let mut projection_predicates = Vec::new();
     for predicate in cx.tcx.param_env(callee_def_id).caller_bounds() {
         match predicate.kind().skip_binder() {
-            PredicateKind::Clause(Clause::Trait(trait_predicate)) => {
+            PredicateKind::Clause(ClauseKind::Trait(trait_predicate)) => {
                 if trait_predicate.trait_ref.self_ty() == input {
                     trait_predicates.push(trait_predicate);
                 }
             },
-            PredicateKind::Clause(Clause::Projection(projection_predicate)) => {
+            PredicateKind::Clause(ClauseKind::Projection(projection_predicate)) => {
                 if projection_predicate.projection_ty.self_ty() == input {
                     projection_predicates.push(projection_predicate);
                 }
@@ -407,7 +407,7 @@ fn can_change_type<'a>(cx: &LateContext<'a>, mut expr: &'a Expr<'a>, mut ty: Ty<
 
                         let mut trait_predicates = cx.tcx.param_env(callee_def_id)
                             .caller_bounds().iter().filter(|predicate| {
-                            if let PredicateKind::Clause(Clause::Trait(trait_predicate))
+                            if let PredicateKind::Clause(ClauseKind::Trait(trait_predicate))
                                     = predicate.kind().skip_binder()
                                 && trait_predicate.trait_ref.self_ty() == *param_ty
                             {
diff --git a/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs b/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs
index 7d53fe65658..3773975e955 100644
--- a/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs
+++ b/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs
@@ -126,7 +126,7 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue {
             .filter_map(|pred| {
                 // Note that we do not want to deal with qualified predicates here.
                 match pred.kind().no_bound_vars() {
-                    Some(ty::PredicateKind::Clause(ty::Clause::Trait(pred))) if pred.def_id() != sized_trait => {
+                    Some(ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred))) if pred.def_id() != sized_trait => {
                         Some(pred)
                     },
                     _ => None,
diff --git a/src/tools/clippy/clippy_lints/src/ptr.rs b/src/tools/clippy/clippy_lints/src/ptr.rs
index fc550936165..b8911f10907 100644
--- a/src/tools/clippy/clippy_lints/src/ptr.rs
+++ b/src/tools/clippy/clippy_lints/src/ptr.rs
@@ -19,7 +19,7 @@ use rustc_infer::infer::TyCtxtInferExt;
 use rustc_infer::traits::{Obligation, ObligationCause};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::hir::nested_filter;
-use rustc_middle::ty::{self, Binder, Clause, ExistentialPredicate, List, PredicateKind, Ty};
+use rustc_middle::ty::{self, Binder, ClauseKind, ExistentialPredicate, List, PredicateKind, Ty};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::source_map::Span;
 use rustc_span::sym;
@@ -697,7 +697,7 @@ fn matches_preds<'tcx>(
             ObligationCause::dummy(),
             cx.param_env,
             cx.tcx
-                .mk_predicate(Binder::dummy(PredicateKind::Clause(Clause::Projection(
+                .mk_predicate(Binder::dummy(PredicateKind::Clause(ClauseKind::Projection(
                     p.with_self_ty(cx.tcx, ty),
                 )))),
         )),
diff --git a/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs b/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs
index 289ca4e9bed..a375e5d5b4c 100644
--- a/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs
+++ b/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs
@@ -4,7 +4,7 @@ use rustc_hir::def_id::DefId;
 use rustc_hir::{Closure, Expr, ExprKind, StmtKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty;
-use rustc_middle::ty::{Clause, GenericPredicates, PredicateKind, ProjectionPredicate, TraitPredicate};
+use rustc_middle::ty::{ClauseKind, GenericPredicates, PredicateKind, ProjectionPredicate, TraitPredicate};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::{sym, BytePos, Span};
 
@@ -45,7 +45,7 @@ fn get_trait_predicates_for_trait_id<'tcx>(
     let mut preds = Vec::new();
     for (pred, _) in generics.predicates {
         if_chain! {
-            if let PredicateKind::Clause(Clause::Trait(poly_trait_pred)) = pred.kind().skip_binder();
+            if let PredicateKind::Clause(ClauseKind::Trait(poly_trait_pred)) = pred.kind().skip_binder();
             let trait_pred = cx.tcx.erase_late_bound_regions(pred.kind().rebind(poly_trait_pred));
             if let Some(trait_def_id) = trait_id;
             if trait_def_id == trait_pred.trait_ref.def_id;
@@ -63,7 +63,7 @@ fn get_projection_pred<'tcx>(
     trait_pred: TraitPredicate<'tcx>,
 ) -> Option<ProjectionPredicate<'tcx>> {
     generics.predicates.iter().find_map(|(proj_pred, _)| {
-        if let ty::PredicateKind::Clause(Clause::Projection(pred)) = proj_pred.kind().skip_binder() {
+        if let ty::PredicateKind::Clause(ClauseKind::Projection(pred)) = proj_pred.kind().skip_binder() {
             let projection_pred = cx.tcx.erase_late_bound_regions(proj_pred.kind().rebind(pred));
             if projection_pred.projection_ty.substs == trait_pred.trait_ref.substs {
                 return Some(projection_pred);
diff --git a/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs b/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs
index 3df40942e7b..941df3318ae 100644
--- a/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs
+++ b/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs
@@ -73,7 +73,7 @@ fn fn_eagerness(cx: &LateContext<'_>, fn_id: DefId, name: Symbol, have_one_arg:
             .flat_map(|v| v.fields.iter())
             .any(|x| matches!(cx.tcx.type_of(x.did).subst_identity().peel_refs().kind(), ty::Param(_)))
             && all_predicates_of(cx.tcx, fn_id).all(|(pred, _)| match pred.kind().skip_binder() {
-                PredicateKind::Clause(ty::Clause::Trait(pred)) => cx.tcx.trait_def(pred.trait_ref.def_id).is_marker,
+                PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => cx.tcx.trait_def(pred.trait_ref.def_id).is_marker,
                 _ => true,
             })
             && subs.types().all(|x| matches!(x.peel_refs().kind(), ty::Param(_)))
diff --git a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs
index 860a489494c..aea79984c7a 100644
--- a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs
+++ b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs
@@ -27,14 +27,14 @@ pub fn is_min_const_fn<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>, msrv: &Msrv)
         for (predicate, _) in predicates.predicates {
             match predicate.kind().skip_binder() {
                 ty::PredicateKind::Clause(
-                    ty::Clause::RegionOutlives(_)
-                    | ty::Clause::TypeOutlives(_)
-                    | ty::Clause::Projection(_)
-                    | ty::Clause::Trait(..)
-                    | ty::Clause::ConstArgHasType(..),
+                    ty::ClauseKind::RegionOutlives(_)
+                    | ty::ClauseKind::TypeOutlives(_)
+                    | ty::ClauseKind::Projection(_)
+                    | ty::ClauseKind::Trait(..)
+                    | ty::ClauseKind::ConstArgHasType(..),
                 )
-                | ty::PredicateKind::Clause(ty::Clause::WellFormed(_))
-                | ty::PredicateKind::Clause(ty::Clause::ConstEvaluatable(..))
+                | ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(_))
+                | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..))
                 | ty::PredicateKind::ConstEquate(..)
                 | ty::PredicateKind::TypeWellFormedFromEnv(..) => continue,
                 ty::PredicateKind::AliasRelate(..) => panic!("alias relate predicate on function: {predicate:#?}"),
diff --git a/src/tools/clippy/clippy_utils/src/ty.rs b/src/tools/clippy/clippy_utils/src/ty.rs
index 7b4ed77e8ed..12f18614d71 100644
--- a/src/tools/clippy/clippy_utils/src/ty.rs
+++ b/src/tools/clippy/clippy_utils/src/ty.rs
@@ -94,7 +94,7 @@ pub fn contains_ty_adt_constructor_opaque<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'
                         match predicate.kind().skip_binder() {
                             // For `impl Trait<U>`, it will register a predicate of `T: Trait<U>`, so we go through
                             // and check substitutions to find `U`.
-                            ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) => {
+                            ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_predicate)) => {
                                 if trait_predicate
                                     .trait_ref
                                     .substs
@@ -107,7 +107,7 @@ pub fn contains_ty_adt_constructor_opaque<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'
                             },
                             // For `impl Trait<Assoc=U>`, it will register a predicate of `<T as Trait>::Assoc = U`,
                             // so we check the term for `U`.
-                            ty::PredicateKind::Clause(ty::Clause::Projection(projection_predicate)) => {
+                            ty::PredicateKind::Clause(ty::ClauseKind::Projection(projection_predicate)) => {
                                 if let ty::TermKind::Ty(ty) = projection_predicate.term.unpack() {
                                     if contains_ty_adt_constructor_opaque_inner(cx, ty, needle, seen) {
                                         return true;
@@ -268,7 +268,7 @@ pub fn is_must_use_ty<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool {
         ty::Tuple(substs) => substs.iter().any(|ty| is_must_use_ty(cx, ty)),
         ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) => {
             for (predicate, _) in cx.tcx.explicit_item_bounds(def_id).skip_binder() {
-                if let ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) = predicate.kind().skip_binder() {
+                if let ty::PredicateKind::Clause(ty::ClauseKind::Trait(trait_predicate)) = predicate.kind().skip_binder() {
                     if cx.tcx.has_attr(trait_predicate.trait_ref.def_id, sym::must_use) {
                         return true;
                     }
@@ -707,7 +707,7 @@ fn sig_from_bounds<'tcx>(
 
     for pred in predicates {
         match pred.kind().skip_binder() {
-            PredicateKind::Clause(ty::Clause::Trait(p))
+            PredicateKind::Clause(ty::ClauseKind::Trait(p))
                 if (lang_items.fn_trait() == Some(p.def_id())
                     || lang_items.fn_mut_trait() == Some(p.def_id())
                     || lang_items.fn_once_trait() == Some(p.def_id()))
@@ -720,7 +720,7 @@ fn sig_from_bounds<'tcx>(
                 }
                 inputs = Some(i);
             },
-            PredicateKind::Clause(ty::Clause::Projection(p))
+            PredicateKind::Clause(ty::ClauseKind::Projection(p))
                 if Some(p.projection_ty.def_id) == lang_items.fn_once_output() && p.projection_ty.self_ty() == ty =>
             {
                 if output.is_some() {
@@ -747,7 +747,7 @@ fn sig_for_projection<'tcx>(cx: &LateContext<'tcx>, ty: AliasTy<'tcx>) -> Option
         .subst_iter_copied(cx.tcx, ty.substs)
     {
         match pred.kind().skip_binder() {
-            PredicateKind::Clause(ty::Clause::Trait(p))
+            PredicateKind::Clause(ty::ClauseKind::Trait(p))
                 if (lang_items.fn_trait() == Some(p.def_id())
                     || lang_items.fn_mut_trait() == Some(p.def_id())
                     || lang_items.fn_once_trait() == Some(p.def_id())) =>
@@ -760,7 +760,7 @@ fn sig_for_projection<'tcx>(cx: &LateContext<'tcx>, ty: AliasTy<'tcx>) -> Option
                 }
                 inputs = Some(i);
             },
-            PredicateKind::Clause(ty::Clause::Projection(p))
+            PredicateKind::Clause(ty::ClauseKind::Projection(p))
                 if Some(p.projection_ty.def_id) == lang_items.fn_once_output() =>
             {
                 if output.is_some() {
@@ -950,7 +950,7 @@ pub fn ty_is_fn_once_param<'tcx>(tcx: TyCtxt<'_>, ty: Ty<'tcx>, predicates: &'tc
     predicates
         .iter()
         .try_fold(false, |found, p| {
-            if let PredicateKind::Clause(ty::Clause::Trait(p)) = p.kind().skip_binder()
+            if let PredicateKind::Clause(ty::ClauseKind::Trait(p)) = p.kind().skip_binder()
             && let ty::Param(self_ty) = p.trait_ref.self_ty().kind()
             && ty.index == self_ty.index
         {