cleanup imports

compiler/rustc_middle/src/traits/mod.rs

@@ -991,9 +991,3 @@ pub enum DefiningAnchor {
     /// Used to catch type mismatch errors when handling opaque types.
     Error,
 }
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, HashStable)]
-pub enum IsNormalizesToHack {
-    Yes,
-    No,
-}

compiler/rustc_middle/src/traits/solve.rs

@@ -228,3 +228,9 @@ impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for PredefinedOpaques<'tcx> {
         self.opaque_types.visit_with(visitor)
     }
 }
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, HashStable)]
+pub enum IsNormalizesToHack {
+    Yes,
+    No,
+}

compiler/rustc_middle/src/traits/solve/inspect.rs

@@ -1,5 +1,7 @@
-use super::{CanonicalInput, Certainty, Goal, NoSolution, QueryInput, QueryResult};
-use crate::{traits::IsNormalizesToHack, ty};
+use super::{
+    CanonicalInput, Certainty, Goal, IsNormalizesToHack, NoSolution, QueryInput, QueryResult,
+};
+use crate::ty;
 use format::ProofTreeFormatter;
 use std::fmt::{Debug, Write};
 
@@ -22,6 +24,7 @@ pub struct GoalEvaluation<'tcx> {
 
     pub result: QueryResult<'tcx>,
 }
+
 #[derive(Eq, PartialEq, Hash, HashStable)]
 pub enum GoalEvaluationKind<'tcx> {
     CacheHit(CacheHit),
@@ -65,6 +68,7 @@ pub struct GoalCandidate<'tcx> {
     pub candidates: Vec<GoalCandidate<'tcx>>,
     pub kind: CandidateKind<'tcx>,
 }
+
 #[derive(Eq, PartialEq, Debug, Hash, HashStable)]
 pub enum CandidateKind<'tcx> {
     /// Probe entered when normalizing the self ty during candidate assembly

compiler/rustc_trait_selection/src/solve/eval_ctxt.rs

@@ -11,10 +11,10 @@ use rustc_infer::traits::ObligationCause;
 use rustc_middle::infer::unify_key::{ConstVariableOrigin, ConstVariableOriginKind};
 use rustc_middle::traits::solve::inspect::{self, CandidateKind};
 use rustc_middle::traits::solve::{
-    CanonicalInput, CanonicalResponse, Certainty, MaybeCause, PredefinedOpaques,
-    PredefinedOpaquesData, QueryResult,
+    CanonicalInput, CanonicalResponse, Certainty, IsNormalizesToHack, MaybeCause,
+    PredefinedOpaques, PredefinedOpaquesData, QueryResult,
 };
-use rustc_middle::traits::{DefiningAnchor, IsNormalizesToHack};
+use rustc_middle::traits::DefiningAnchor;
 use rustc_middle::ty::{
     self, OpaqueTypeKey, Ty, TyCtxt, TypeFoldable, TypeSuperVisitable, TypeVisitable,
     TypeVisitableExt, TypeVisitor,

compiler/rustc_trait_selection/src/solve/inspect.rs

@@ -1,14 +1,9 @@
-use rustc_middle::{
-    traits::{
-        query::NoSolution,
-        solve::{
-            inspect::{self, CacheHit, CandidateKind},
-            CanonicalInput, Certainty, Goal, QueryInput, QueryResult,
-        },
-        IsNormalizesToHack,
-    },
-    ty,
+use rustc_middle::traits::query::NoSolution;
+use rustc_middle::traits::solve::inspect::{self, CacheHit, CandidateKind};
+use rustc_middle::traits::solve::{
+    CanonicalInput, Certainty, Goal, IsNormalizesToHack, QueryInput, QueryResult,
 };
+use rustc_middle::ty;
 
 pub mod dump;