Use rustc_fluent_macro::fluent_messages! directly.

Currently we always do this:
```
use rustc_fluent_macro::fluent_messages;
...
fluent_messages! { "./example.ftl" }
```
But there is no need, we can just do this everywhere:
```
rustc_fluent_macro::fluent_messages! { "./example.ftl" }
```
which is shorter.

compiler/rustc_ast_lowering/src/lib.rs

@@ -56,7 +56,6 @@ use rustc_data_structures::sorted_map::SortedMap;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_data_structures::sync::Lrc;
 use rustc_errors::{DiagnosticArgFromDisplay, Handler, StashKey};
-use rustc_fluent_macro::fluent_messages;
 use rustc_hir as hir;
 use rustc_hir::def::{DefKind, LifetimeRes, Namespace, PartialRes, PerNS, Res};
 use rustc_hir::def_id::{LocalDefId, CRATE_DEF_ID, LOCAL_CRATE};
@@ -92,7 +91,7 @@ mod lifetime_collector;
 mod pat;
 mod path;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 struct LoweringContext<'a, 'hir> {
     tcx: TyCtxt<'hir>,

compiler/rustc_ast_passes/src/lib.rs

@@ -15,12 +15,10 @@
 #![deny(rustc::untranslatable_diagnostic)]
 #![deny(rustc::diagnostic_outside_of_impl)]
 
-use rustc_fluent_macro::fluent_messages;
-
 pub mod ast_validation;
 mod errors;
 pub mod feature_gate;
 pub mod node_count;
 pub mod show_span;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }

compiler/rustc_attr/src/lib.rs

@@ -14,8 +14,6 @@
 #[macro_use]
 extern crate rustc_macros;
 
-use rustc_fluent_macro::fluent_messages;
-
 mod builtin;
 mod session_diagnostics;
 
@@ -28,4 +26,4 @@ pub use rustc_ast::attr::*;
 
 pub(crate) use rustc_session::HashStableContext;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }

compiler/rustc_borrowck/src/lib.rs

@@ -23,7 +23,6 @@ extern crate tracing;
 use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
 use rustc_data_structures::graph::dominators::Dominators;
 use rustc_errors::{Diagnostic, DiagnosticBuilder};
-use rustc_fluent_macro::fluent_messages;
 use rustc_hir as hir;
 use rustc_hir::def_id::LocalDefId;
 use rustc_index::bit_set::{BitSet, ChunkedBitSet};
@@ -98,7 +97,7 @@ use places_conflict::{places_conflict, PlaceConflictBias};
 use region_infer::RegionInferenceContext;
 use renumber::RegionCtxt;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 // FIXME(eddyb) perhaps move this somewhere more centrally.
 #[derive(Debug)]

compiler/rustc_builtin_macros/src/lib.rs

@@ -25,7 +25,6 @@ use crate::deriving::*;
 
 use rustc_expand::base::{MacroExpanderFn, ResolverExpand, SyntaxExtensionKind};
 use rustc_expand::proc_macro::BangProcMacro;
-use rustc_fluent_macro::fluent_messages;
 use rustc_span::symbol::sym;
 
 mod alloc_error_handler;
@@ -58,7 +57,7 @@ pub mod proc_macro_harness;
 pub mod standard_library_imports;
 pub mod test_harness;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 pub fn register_builtin_macros(resolver: &mut dyn ResolverExpand) {
     let mut register = |name, kind| resolver.register_builtin_macro(name, kind);

compiler/rustc_codegen_gcc/src/lib.rs

@@ -102,7 +102,6 @@ use rustc_data_structures::fx::FxIndexMap;
 use rustc_data_structures::sync::IntoDynSyncSend;
 use rustc_codegen_ssa::traits::{CodegenBackend, ExtraBackendMethods, ThinBufferMethods, WriteBackendMethods};
 use rustc_errors::{ErrorGuaranteed, Handler};
-use rustc_fluent_macro::fluent_messages;
 use rustc_metadata::EncodedMetadata;
 use rustc_middle::dep_graph::{WorkProduct, WorkProductId};
 use rustc_middle::util::Providers;
@@ -116,7 +115,7 @@ use tempfile::TempDir;
 use crate::back::lto::ModuleBuffer;
 use crate::gcc_util::target_cpu;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 pub struct PrintOnPanic<F: Fn() -> String>(pub F);
 

compiler/rustc_codegen_llvm/src/lib.rs

@@ -41,7 +41,6 @@ use rustc_codegen_ssa::ModuleCodegen;
 use rustc_codegen_ssa::{CodegenResults, CompiledModule};
 use rustc_data_structures::fx::FxIndexMap;
 use rustc_errors::{ErrorGuaranteed, FatalError, Handler};
-use rustc_fluent_macro::fluent_messages;
 use rustc_metadata::EncodedMetadata;
 use rustc_middle::dep_graph::{WorkProduct, WorkProductId};
 use rustc_middle::ty::TyCtxt;
@@ -92,7 +91,7 @@ mod type_of;
 mod va_arg;
 mod value;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 #[derive(Clone)]
 pub struct LlvmCodegenBackend(());

compiler/rustc_codegen_ssa/src/lib.rs

@@ -27,7 +27,6 @@ extern crate rustc_middle;
 use rustc_ast as ast;
 use rustc_data_structures::fx::{FxHashMap, FxHashSet};
 use rustc_data_structures::sync::Lrc;
-use rustc_fluent_macro::fluent_messages;
 use rustc_hir::def_id::CrateNum;
 use rustc_middle::dep_graph::WorkProduct;
 use rustc_middle::middle::debugger_visualizer::DebuggerVisualizerFile;
@@ -59,7 +58,7 @@ pub mod mono_item;
 pub mod target_features;
 pub mod traits;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 pub struct ModuleCodegen<M> {
     /// The name of the module. When the crate may be saved between

compiler/rustc_const_eval/src/lib.rs

@@ -39,10 +39,9 @@ pub mod util;
 
 pub use errors::ReportErrorExt;
 
-use rustc_fluent_macro::fluent_messages;
 use rustc_middle::{ty, util::Providers};
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 pub fn provide(providers: &mut Providers) {
     const_eval::provide(providers);

compiler/rustc_driver_impl/src/lib.rs

@@ -30,7 +30,6 @@ use rustc_errors::registry::{InvalidErrorCode, Registry};
 use rustc_errors::{markdown, ColorConfig};
 use rustc_errors::{ErrorGuaranteed, Handler, PResult};
 use rustc_feature::find_gated_cfg;
-use rustc_fluent_macro::fluent_messages;
 use rustc_interface::util::{self, collect_crate_types, get_codegen_backend};
 use rustc_interface::{interface, Queries};
 use rustc_lint::unerased_lint_store;
@@ -102,7 +101,7 @@ use crate::session_diagnostics::{
     RLinkWrongFileType, RlinkNotAFile, RlinkUnableToRead,
 };
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 pub static DEFAULT_LOCALE_RESOURCES: &[&str] = &[
     // tidy-alphabetical-start

compiler/rustc_errors/src/lib.rs

@@ -41,7 +41,6 @@ pub use rustc_error_messages::{
     fallback_fluent_bundle, fluent_bundle, DelayDm, DiagnosticMessage, FluentBundle,
     LanguageIdentifier, LazyFallbackBundle, MultiSpan, SpanLabel, SubdiagnosticMessage,
 };
-use rustc_fluent_macro::fluent_messages;
 pub use rustc_lint_defs::{pluralize, Applicability};
 use rustc_span::source_map::SourceMap;
 pub use rustc_span::ErrorGuaranteed;
@@ -82,7 +81,7 @@ pub use snippet::Style;
 pub type PErr<'a> = DiagnosticBuilder<'a, ErrorGuaranteed>;
 pub type PResult<'a, T> = Result<T, PErr<'a>>;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 // `PResult` is used a lot. Make sure it doesn't unintentionally get bigger.
 // (See also the comment on `DiagnosticBuilderInner`'s `diagnostic` field.)

compiler/rustc_expand/src/lib.rs

@@ -23,8 +23,6 @@ extern crate tracing;
 
 extern crate proc_macro as pm;
 
-use rustc_fluent_macro::fluent_messages;
-
 mod placeholders;
 mod proc_macro_server;
 
@@ -66,4 +64,4 @@ mod mut_visit {
     mod tests;
 }
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }

compiler/rustc_hir_analysis/src/lib.rs

@@ -99,7 +99,6 @@ pub mod structured_errors;
 mod variance;
 
 use rustc_errors::ErrorGuaranteed;
-use rustc_fluent_macro::fluent_messages;
 use rustc_hir as hir;
 use rustc_middle::middle;
 use rustc_middle::query::Providers;
@@ -114,7 +113,7 @@ use astconv::{AstConv, OnlySelfBounds};
 use bounds::Bounds;
 use rustc_hir::def::DefKind;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 fn require_c_abi_if_c_variadic(tcx: TyCtxt<'_>, decl: &hir::FnDecl<'_>, abi: Abi, span: Span) {
     const CONVENTIONS_UNSTABLE: &str = "`C`, `cdecl`, `aapcs`, `win64`, `sysv64` or `efiapi`";

compiler/rustc_hir_typeck/src/lib.rs

@@ -53,7 +53,6 @@ use crate::fn_ctxt::RawTy;
 use crate::gather_locals::GatherLocalsVisitor;
 use rustc_data_structures::unord::UnordSet;
 use rustc_errors::{struct_span_err, DiagnosticId, ErrorGuaranteed, MultiSpan};
-use rustc_fluent_macro::fluent_messages;
 use rustc_hir as hir;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::intravisit::Visitor;
@@ -68,7 +67,7 @@ use rustc_session::config;
 use rustc_span::def_id::{DefId, LocalDefId};
 use rustc_span::Span;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 #[macro_export]
 macro_rules! type_error_struct {

compiler/rustc_incremental/src/lib.rs

@@ -28,6 +28,4 @@ pub use persist::save_work_product_index;
 pub use persist::setup_dep_graph;
 pub use persist::LoadResult;
 
-use rustc_fluent_macro::fluent_messages;
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
-
-fluent_messages! { "../messages.ftl" }

compiler/rustc_infer/src/lib.rs

@@ -37,10 +37,8 @@ extern crate tracing;
 #[macro_use]
 extern crate rustc_middle;
 
-use rustc_fluent_macro::fluent_messages;
-
 mod errors;
 pub mod infer;
 pub mod traits;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }

compiler/rustc_interface/src/lib.rs

@@ -13,8 +13,6 @@
 #[macro_use]
 extern crate tracing;
 
-use rustc_fluent_macro::fluent_messages;
-
 mod callbacks;
 mod errors;
 pub mod interface;
@@ -31,4 +29,4 @@ pub use queries::Queries;
 #[cfg(test)]
 mod tests;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }

compiler/rustc_lint/src/lib.rs

@@ -90,7 +90,6 @@ mod unused;
 
 pub use array_into_iter::ARRAY_INTO_ITER;
 
-use rustc_fluent_macro::fluent_messages;
 use rustc_hir::def_id::LocalModDefId;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::TyCtxt;
@@ -137,7 +136,7 @@ pub use rustc_session::lint::Level::{self, *};
 pub use rustc_session::lint::{BufferedEarlyLint, FutureIncompatibleInfo, Lint, LintId};
 pub use rustc_session::lint::{LintPass, LintVec};
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 pub fn provide(providers: &mut Providers) {
     levels::provide(providers);

compiler/rustc_metadata/src/lib.rs

@@ -31,7 +31,6 @@ extern crate rustc_middle;
 extern crate tracing;
 
 pub use rmeta::provide;
-use rustc_fluent_macro::fluent_messages;
 
 mod dependency_format;
 mod foreign_modules;
@@ -47,4 +46,4 @@ pub use fs::{emit_wrapper_file, METADATA_FILENAME};
 pub use native_libs::find_native_static_library;
 pub use rmeta::{encode_metadata, rendered_const, EncodedMetadata, METADATA_HEADER};
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }

compiler/rustc_middle/src/lib.rs

@@ -77,8 +77,6 @@ extern crate tracing;
 #[macro_use]
 extern crate smallvec;
 
-use rustc_fluent_macro::fluent_messages;
-
 #[cfg(test)]
 mod tests;
 
@@ -109,4 +107,4 @@ pub mod dep_graph;
 // Allows macros to refer to this crate as `::rustc_middle`
 extern crate self as rustc_middle;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }

compiler/rustc_mir_build/src/lib.rs

@@ -24,9 +24,7 @@ mod thir;
 
 use rustc_middle::query::Providers;
 
-use rustc_fluent_macro::fluent_messages;
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
-
-fluent_messages! { "../messages.ftl" }
 
 pub fn provide(providers: &mut Providers) {
     providers.check_match = thir::pattern::check_match;

compiler/rustc_mir_dataflow/src/lib.rs

@@ -13,7 +13,6 @@ extern crate tracing;
 #[macro_use]
 extern crate rustc_middle;
 
-use rustc_fluent_macro::fluent_messages;
 use rustc_middle::ty;
 
 pub use self::drop_flag_effects::{
@@ -39,7 +38,7 @@ pub mod storage;
 pub mod un_derefer;
 pub mod value_analysis;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 pub struct MoveDataParamEnv<'tcx> {
     pub move_data: MoveData<'tcx>,

compiler/rustc_mir_transform/src/lib.rs

@@ -118,9 +118,7 @@ use rustc_const_eval::transform::promote_consts;
 use rustc_const_eval::transform::validate;
 use rustc_mir_dataflow::rustc_peek;
 
-use rustc_fluent_macro::fluent_messages;
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
-
-fluent_messages! { "../messages.ftl" }
 
 pub fn provide(providers: &mut Providers) {
     check_unsafety::provide(providers);

compiler/rustc_monomorphize/src/lib.rs

@@ -10,7 +10,6 @@ extern crate tracing;
 #[macro_use]
 extern crate rustc_middle;
 
-use rustc_fluent_macro::fluent_messages;
 use rustc_hir::lang_items::LangItem;
 use rustc_middle::query::{Providers, TyCtxtAt};
 use rustc_middle::traits;
@@ -23,7 +22,7 @@ mod partitioning;
 mod polymorphize;
 mod util;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 fn custom_coerce_unsize_info<'tcx>(
     tcx: TyCtxtAt<'tcx>,

compiler/rustc_parse/src/lib.rs

@@ -20,7 +20,6 @@ use rustc_ast::{AttrItem, Attribute, MetaItem};
 use rustc_ast_pretty::pprust;
 use rustc_data_structures::sync::Lrc;
 use rustc_errors::{Diagnostic, FatalError, Level, PResult};
-use rustc_fluent_macro::fluent_messages;
 use rustc_session::parse::ParseSess;
 use rustc_span::{FileName, SourceFile, Span};
 
@@ -36,7 +35,7 @@ pub mod validate_attr;
 
 mod errors;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 // A bunch of utility functions of the form `parse_<thing>_from_<source>`
 // where <thing> includes crate, expr, item, stmt, tts, and one that

compiler/rustc_passes/src/lib.rs

@@ -23,7 +23,6 @@ extern crate rustc_middle;
 #[macro_use]
 extern crate tracing;
 
-use rustc_fluent_macro::fluent_messages;
 use rustc_middle::query::Providers;
 
 pub mod abi_test;
@@ -47,7 +46,7 @@ pub mod stability;
 mod upvars;
 mod weak_lang_items;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 pub fn provide(providers: &mut Providers) {
     check_attr::provide(providers);

compiler/rustc_privacy/src/lib.rs

@@ -19,7 +19,6 @@ use rustc_ast::MacroDef;
 use rustc_attr as attr;
 use rustc_data_structures::fx::FxHashSet;
 use rustc_data_structures::intern::Interned;
-use rustc_fluent_macro::fluent_messages;
 use rustc_hir as hir;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::def_id::{DefId, LocalDefId, LocalModDefId, CRATE_DEF_ID};
@@ -48,7 +47,7 @@ use errors::{
     UnnamedItemIsPrivate,
 };
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 ////////////////////////////////////////////////////////////////////////////////
 /// Generic infrastructure used to implement specific visitors below.

compiler/rustc_query_system/src/lib.rs

@@ -14,8 +14,6 @@ extern crate rustc_data_structures;
 #[macro_use]
 extern crate rustc_macros;
 
-use rustc_fluent_macro::fluent_messages;
-
 pub mod cache;
 pub mod dep_graph;
 mod error;
@@ -28,4 +26,4 @@ pub use error::LayoutOfDepth;
 pub use error::QueryOverflow;
 pub use values::Value;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }

compiler/rustc_resolve/src/lib.rs

@@ -40,7 +40,6 @@ use rustc_data_structures::sync::{FreezeReadGuard, Lrc};
 use rustc_errors::{Applicability, DiagnosticBuilder, ErrorGuaranteed};
 use rustc_expand::base::{DeriveResolutions, SyntaxExtension, SyntaxExtensionKind};
 use rustc_feature::BUILTIN_ATTRIBUTES;
-use rustc_fluent_macro::fluent_messages;
 use rustc_hir::def::Namespace::{self, *};
 use rustc_hir::def::NonMacroAttrKind;
 use rustc_hir::def::{self, CtorOf, DefKind, DocLinkResMap, LifetimeRes, PartialRes, PerNS};
@@ -88,7 +87,7 @@ mod late;
 mod macros;
 pub mod rustdoc;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 #[derive(Debug)]
 enum Weak {

compiler/rustc_session/src/lib.rs

@@ -20,8 +20,6 @@ pub mod errors;
 #[macro_use]
 extern crate tracing;
 
-use rustc_fluent_macro::fluent_messages;
-
 pub mod utils;
 pub use lint::{declare_lint, declare_lint_pass, declare_tool_lint, impl_lint_pass};
 pub use rustc_lint_defs as lint;
@@ -45,7 +43,7 @@ pub use getopts;
 mod version;
 pub use version::RustcVersion;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 /// Requirements for a `StableHashingContext` to be used in this crate.
 /// This is a hack to allow using the `HashStable_Generic` derive macro

compiler/rustc_trait_selection/src/lib.rs

@@ -37,11 +37,9 @@ extern crate rustc_middle;
 #[macro_use]
 extern crate smallvec;
 
-use rustc_fluent_macro::fluent_messages;
-
 pub mod errors;
 pub mod infer;
 pub mod solve;
 pub mod traits;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }

compiler/rustc_ty_utils/src/lib.rs

@@ -24,7 +24,6 @@ extern crate rustc_middle;
 #[macro_use]
 extern crate tracing;
 
-use rustc_fluent_macro::fluent_messages;
 use rustc_middle::query::Providers;
 
 mod abi;
@@ -43,7 +42,7 @@ mod sig_types;
 mod structural_match;
 mod ty;
 
-fluent_messages! { "../messages.ftl" }
+rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 pub fn provide(providers: &mut Providers) {
     abi::provide(providers);

tests/ui-fulldeps/fluent-messages/test.rs

@@ -4,7 +4,6 @@
 #![crate_type = "lib"]
 extern crate rustc_errors;
 extern crate rustc_fluent_macro;
-use rustc_fluent_macro::fluent_messages;
 
 /// Copy of the relevant `DiagnosticMessage` variant constructed by `fluent_messages` as it
 /// expects `crate::DiagnosticMessage` to exist.
@@ -19,51 +18,37 @@ pub enum SubdiagnosticMessage {
 }
 
 mod missing_absolute {
-    use super::fluent_messages;
+    rustc_fluent_macro::fluent_messages! { "/definitely_does_not_exist.ftl" }
-
-    fluent_messages! { "/definitely_does_not_exist.ftl" }
     //~^ ERROR could not open Fluent resource
 }
 
 mod missing_relative {
-    use super::fluent_messages;
+    rustc_fluent_macro::fluent_messages! { "../definitely_does_not_exist.ftl" }
-
-    fluent_messages! { "../definitely_does_not_exist.ftl" }
     //~^ ERROR could not open Fluent resource
 }
 
 mod missing_message {
-    use super::fluent_messages;
+    rustc_fluent_macro::fluent_messages! { "./missing-message.ftl" }
-
-    fluent_messages! { "./missing-message.ftl" }
     //~^ ERROR could not parse Fluent resource
 }
 
 mod duplicate {
-    use super::fluent_messages;
+    rustc_fluent_macro::fluent_messages! { "./duplicate.ftl" }
-
-    fluent_messages! { "./duplicate.ftl" }
     //~^ ERROR overrides existing message: `no_crate_a_b_key`
 }
 
 mod slug_with_hyphens {
-    use super::fluent_messages;
+    rustc_fluent_macro::fluent_messages! { "./slug-with-hyphens.ftl" }
-
-    fluent_messages! { "./slug-with-hyphens.ftl" }
     //~^ ERROR name `no_crate_this-slug-has-hyphens` contains a '-' character
 }
 
 mod label_with_hyphens {
-    use super::fluent_messages;
+    rustc_fluent_macro::fluent_messages! { "./label-with-hyphens.ftl" }
-
-    fluent_messages! { "./label-with-hyphens.ftl" }
     //~^ ERROR attribute `label-has-hyphens` contains a '-' character
 }
 
 mod valid {
-    use super::fluent_messages;
+    rustc_fluent_macro::fluent_messages! { "./valid.ftl" }
-
-    fluent_messages! { "./valid.ftl" }
 
     mod test_generated {
         use super::{fluent_generated::no_crate_key, DEFAULT_LOCALE_RESOURCE};
@@ -71,9 +56,7 @@ mod valid {
 }
 
 mod missing_crate_name {
-    use super::fluent_messages;
+    rustc_fluent_macro::fluent_messages! { "./missing-crate-name.ftl" }
-
-    fluent_messages! { "./missing-crate-name.ftl" }
     //~^ ERROR name `no-crate_foo` contains a '-' character
     //~| ERROR name `with-hyphens` contains a '-' character
     //~| ERROR name `with-hyphens` does not start with the crate name
@@ -87,16 +70,12 @@ mod missing_crate_name {
 }
 
 mod missing_message_ref {
-    use super::fluent_messages;
+    rustc_fluent_macro::fluent_messages! { "./missing-message-ref.ftl" }
-
-    fluent_messages! { "./missing-message-ref.ftl" }
     //~^ ERROR referenced message `message` does not exist
 }
 
 mod bad_escape {
-    use super::fluent_messages;
+    rustc_fluent_macro::fluent_messages! { "./invalid-escape.ftl" }
-
-    fluent_messages! { "./invalid-escape.ftl" }
     //~^ ERROR invalid escape `\n`
     //~| ERROR invalid escape `\"`
     //~| ERROR invalid escape `\'`

tests/ui-fulldeps/fluent-messages/test.stderr

@@ -1,19 +1,19 @@
 error: could not open Fluent resource: os-specific message
-  --> $DIR/test.rs:24:24
+  --> $DIR/test.rs:21:44
    |
-LL |     fluent_messages! { "/definitely_does_not_exist.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "/definitely_does_not_exist.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: could not open Fluent resource: os-specific message
-  --> $DIR/test.rs:31:24
+  --> $DIR/test.rs:26:44
    |
-LL |     fluent_messages! { "../definitely_does_not_exist.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "../definitely_does_not_exist.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: could not parse Fluent resource
-  --> $DIR/test.rs:38:24
+  --> $DIR/test.rs:31:44
    |
-LL |     fluent_messages! { "./missing-message.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "./missing-message.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: see additional errors emitted
@@ -26,79 +26,79 @@ error: expected a message field for "no_crate_missing_message"
   |
 
 error: overrides existing message: `no_crate_a_b_key`
-  --> $DIR/test.rs:45:24
+  --> $DIR/test.rs:36:44
    |
-LL |     fluent_messages! { "./duplicate.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "./duplicate.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^
 
 error: name `no_crate_this-slug-has-hyphens` contains a '-' character
-  --> $DIR/test.rs:52:24
+  --> $DIR/test.rs:41:44
    |
-LL |     fluent_messages! { "./slug-with-hyphens.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "./slug-with-hyphens.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: replace any '-'s with '_'s
 
 error: attribute `label-has-hyphens` contains a '-' character
-  --> $DIR/test.rs:59:24
+  --> $DIR/test.rs:46:44
    |
-LL |     fluent_messages! { "./label-with-hyphens.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "./label-with-hyphens.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: replace any '-'s with '_'s
 
 error: name `with-hyphens` contains a '-' character
-  --> $DIR/test.rs:76:24
+  --> $DIR/test.rs:59:44
    |
-LL |     fluent_messages! { "./missing-crate-name.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "./missing-crate-name.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: replace any '-'s with '_'s
 
 error: name `with-hyphens` does not start with the crate name
-  --> $DIR/test.rs:76:24
+  --> $DIR/test.rs:59:44
    |
-LL |     fluent_messages! { "./missing-crate-name.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "./missing-crate-name.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: prepend `no_crate_` to the slug name: `no_crate_with_hyphens`
 
 error: name `no-crate_foo` contains a '-' character
-  --> $DIR/test.rs:76:24
+  --> $DIR/test.rs:59:44
    |
-LL |     fluent_messages! { "./missing-crate-name.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "./missing-crate-name.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: replace any '-'s with '_'s
 
 error: referenced message `message` does not exist (in message `no_crate_missing_message_ref`)
-  --> $DIR/test.rs:92:24
+  --> $DIR/test.rs:73:44
    |
-LL |     fluent_messages! { "./missing-message-ref.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "./missing-message-ref.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: you may have meant to use a variable reference (`{$message}`)
 
 error: invalid escape `\n` in Fluent resource
-  --> $DIR/test.rs:99:24
+  --> $DIR/test.rs:78:44
    |
-LL |     fluent_messages! { "./invalid-escape.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "./invalid-escape.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: Fluent does not interpret these escape sequences (<https://projectfluent.org/fluent/guide/special.html>)
 
 error: invalid escape `\"` in Fluent resource
-  --> $DIR/test.rs:99:24
+  --> $DIR/test.rs:78:44
    |
-LL |     fluent_messages! { "./invalid-escape.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "./invalid-escape.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: Fluent does not interpret these escape sequences (<https://projectfluent.org/fluent/guide/special.html>)
 
 error: invalid escape `\'` in Fluent resource
-  --> $DIR/test.rs:99:24
+  --> $DIR/test.rs:78:44
    |
-LL |     fluent_messages! { "./invalid-escape.ftl" }
+LL |     rustc_fluent_macro::fluent_messages! { "./invalid-escape.ftl" }
    |                                            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: Fluent does not interpret these escape sequences (<https://projectfluent.org/fluent/guide/special.html>)

tests/ui-fulldeps/internal-lints/diagnostics.rs

@@ -16,11 +16,10 @@ use rustc_errors::{
     AddToDiagnostic, Diagnostic, DiagnosticBuilder, DiagnosticMessage, ErrorGuaranteed, Handler,
     IntoDiagnostic, SubdiagnosticMessage,
 };
-use rustc_fluent_macro::fluent_messages;
 use rustc_macros::{Diagnostic, Subdiagnostic};
 use rustc_span::Span;
 
-fluent_messages! { "./diagnostics.ftl" }
+rustc_fluent_macro::fluent_messages! { "./diagnostics.ftl" }
 
 #[derive(Diagnostic)]
 #[diag(no_crate_example)]

tests/ui-fulldeps/internal-lints/diagnostics.stderr

@@ -1,5 +1,5 @@
 error: diagnostics should be created using translatable messages
-  --> $DIR/diagnostics.rs:43:17
+  --> $DIR/diagnostics.rs:42:17
    |
 LL |         handler.struct_err("untranslatable diagnostic")
    |                 ^^^^^^^^^^
@@ -11,13 +11,13 @@ LL | #![deny(rustc::untranslatable_diagnostic)]
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: diagnostics should be created using translatable messages
-  --> $DIR/diagnostics.rs:63:14
+  --> $DIR/diagnostics.rs:62:14
    |
 LL |         diag.note("untranslatable diagnostic");
    |              ^^^^
 
 error: diagnostics should only be created in `IntoDiagnostic`/`AddToDiagnostic` impls
-  --> $DIR/diagnostics.rs:80:25
+  --> $DIR/diagnostics.rs:79:25
    |
 LL |     let _diag = handler.struct_err(crate::fluent_generated::no_crate_example);
    |                         ^^^^^^^^^^
@@ -29,13 +29,13 @@ LL | #![deny(rustc::diagnostic_outside_of_impl)]
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: diagnostics should only be created in `IntoDiagnostic`/`AddToDiagnostic` impls
-  --> $DIR/diagnostics.rs:83:25
+  --> $DIR/diagnostics.rs:82:25
    |
 LL |     let _diag = handler.struct_err("untranslatable diagnostic");
    |                         ^^^^^^^^^^
 
 error: diagnostics should be created using translatable messages
-  --> $DIR/diagnostics.rs:83:25
+  --> $DIR/diagnostics.rs:82:25
    |
 LL |     let _diag = handler.struct_err("untranslatable diagnostic");
    |                         ^^^^^^^^^^

tests/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field.rs

@@ -20,11 +20,10 @@ extern crate rustc_session;
 extern crate rustc_span;
 
 use rustc_errors::{Applicability, DiagnosticMessage, SubdiagnosticMessage};
-use rustc_fluent_macro::fluent_messages;
 use rustc_macros::{Diagnostic, Subdiagnostic};
 use rustc_span::Span;
 
-fluent_messages! { "./example.ftl" }
+rustc_fluent_macro::fluent_messages! { "./example.ftl" }
 
 struct NotIntoDiagnosticArg;
 

tests/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field.stderr

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `NotIntoDiagnosticArg: IntoDiagnosticArg` is not satisfied
-  --> $DIR/diagnostic-derive-doc-comment-field.rs:37:10
+  --> $DIR/diagnostic-derive-doc-comment-field.rs:36:10
    |
 LL | #[derive(Diagnostic)]
    |          ---------- required by a bound introduced by this call
@@ -13,7 +13,7 @@ note: required by a bound in `DiagnosticBuilder::<'a, G>::set_arg`
    = note: this error originates in the macro `forward` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: the trait bound `NotIntoDiagnosticArg: IntoDiagnosticArg` is not satisfied
-  --> $DIR/diagnostic-derive-doc-comment-field.rs:47:10
+  --> $DIR/diagnostic-derive-doc-comment-field.rs:46:10
    |
 LL | #[derive(Subdiagnostic)]
    |          ------------- required by a bound introduced by this call

tests/ui-fulldeps/session-diagnostic/diagnostic-derive.rs

@@ -19,7 +19,6 @@ use rustc_span::Span;
 
 extern crate rustc_fluent_macro;
 extern crate rustc_macros;
-use rustc_fluent_macro::fluent_messages;
 use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic};
 
 extern crate rustc_middle;
@@ -30,7 +29,7 @@ use rustc_errors::{Applicability, DiagnosticMessage, MultiSpan, SubdiagnosticMes
 
 extern crate rustc_session;
 
-fluent_messages! { "./example.ftl" }
+rustc_fluent_macro::fluent_messages! { "./example.ftl" }
 
 #[derive(Diagnostic)]
 #[diag(no_crate_example, code = "E0123")]

tests/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr

@@ -1,11 +1,11 @@
 error: unsupported type attribute for diagnostic derive enum
-  --> $DIR/diagnostic-derive.rs:44:1
+  --> $DIR/diagnostic-derive.rs:43:1
    |
 LL | #[diag(no_crate_example, code = "E0123")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:47:5
+  --> $DIR/diagnostic-derive.rs:46:5
    |
 LL |     Foo,
    |     ^^^
@@ -13,7 +13,7 @@ LL |     Foo,
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:49:5
+  --> $DIR/diagnostic-derive.rs:48:5
    |
 LL |     Bar,
    |     ^^^
@@ -21,13 +21,13 @@ LL |     Bar,
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: `#[nonsense(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:60:1
+  --> $DIR/diagnostic-derive.rs:59:1
    |
 LL | #[nonsense(no_crate_example, code = "E0123")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:60:1
+  --> $DIR/diagnostic-derive.rs:59:1
    |
 LL | / #[nonsense(no_crate_example, code = "E0123")]
 LL | |
@@ -39,7 +39,7 @@ LL | | struct InvalidStructAttr {}
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:67:1
+  --> $DIR/diagnostic-derive.rs:66:1
    |
 LL | / #[diag("E0123")]
 LL | |
@@ -49,13 +49,13 @@ LL | | struct InvalidLitNestedAttr {}
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: diagnostic slug must be the first argument
-  --> $DIR/diagnostic-derive.rs:77:16
+  --> $DIR/diagnostic-derive.rs:76:16
    |
 LL | #[diag(nonsense("foo"), code = "E0123", slug = "foo")]
    |                ^
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:77:1
+  --> $DIR/diagnostic-derive.rs:76:1
    |
 LL | / #[diag(nonsense("foo"), code = "E0123", slug = "foo")]
 LL | |
@@ -66,7 +66,7 @@ LL | | struct InvalidNestedStructAttr1 {}
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: unknown argument
-  --> $DIR/diagnostic-derive.rs:83:8
+  --> $DIR/diagnostic-derive.rs:82:8
    |
 LL | #[diag(nonsense = "...", code = "E0123", slug = "foo")]
    |        ^^^^^^^^
@@ -74,7 +74,7 @@ LL | #[diag(nonsense = "...", code = "E0123", slug = "foo")]
    = note: only the `code` parameter is valid after the slug
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:83:1
+  --> $DIR/diagnostic-derive.rs:82:1
    |
 LL | / #[diag(nonsense = "...", code = "E0123", slug = "foo")]
 LL | |
@@ -85,7 +85,7 @@ LL | | struct InvalidNestedStructAttr2 {}
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: unknown argument
-  --> $DIR/diagnostic-derive.rs:89:8
+  --> $DIR/diagnostic-derive.rs:88:8
    |
 LL | #[diag(nonsense = 4, code = "E0123", slug = "foo")]
    |        ^^^^^^^^
@@ -93,7 +93,7 @@ LL | #[diag(nonsense = 4, code = "E0123", slug = "foo")]
    = note: only the `code` parameter is valid after the slug
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:89:1
+  --> $DIR/diagnostic-derive.rs:88:1
    |
 LL | / #[diag(nonsense = 4, code = "E0123", slug = "foo")]
 LL | |
@@ -104,7 +104,7 @@ LL | | struct InvalidNestedStructAttr3 {}
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: unknown argument
-  --> $DIR/diagnostic-derive.rs:95:42
+  --> $DIR/diagnostic-derive.rs:94:42
    |
 LL | #[diag(no_crate_example, code = "E0123", slug = "foo")]
    |                                          ^^^^
@@ -112,55 +112,55 @@ LL | #[diag(no_crate_example, code = "E0123", slug = "foo")]
    = note: only the `code` parameter is valid after the slug
 
 error: `#[suggestion = ...]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:102:5
+  --> $DIR/diagnostic-derive.rs:101:5
    |
 LL |     #[suggestion = "bar"]
    |     ^^^^^^^^^^^^^^^^^^^^^
 
 error: specified multiple times
-  --> $DIR/diagnostic-derive.rs:109:8
-   |
-LL | #[diag(no_crate_example, code = "E0456")]
-   |        ^^^^^^^^^^^^^^^^
-   |
-note: previously specified here
   --> $DIR/diagnostic-derive.rs:108:8
    |
+LL | #[diag(no_crate_example, code = "E0456")]
+   |        ^^^^^^^^^^^^^^^^
+   |
+note: previously specified here
+  --> $DIR/diagnostic-derive.rs:107:8
+   |
 LL | #[diag(no_crate_example, code = "E0123")]
    |        ^^^^^^^^^^^^^^^^
 
 error: specified multiple times
-  --> $DIR/diagnostic-derive.rs:109:26
+  --> $DIR/diagnostic-derive.rs:108:26
    |
 LL | #[diag(no_crate_example, code = "E0456")]
    |                          ^^^^
    |
 note: previously specified here
-  --> $DIR/diagnostic-derive.rs:108:26
+  --> $DIR/diagnostic-derive.rs:107:26
    |
 LL | #[diag(no_crate_example, code = "E0123")]
    |                          ^^^^
 
 error: specified multiple times
-  --> $DIR/diagnostic-derive.rs:115:42
+  --> $DIR/diagnostic-derive.rs:114:42
    |
 LL | #[diag(no_crate_example, code = "E0456", code = "E0457")]
    |                                          ^^^^
    |
 note: previously specified here
-  --> $DIR/diagnostic-derive.rs:115:26
+  --> $DIR/diagnostic-derive.rs:114:26
    |
 LL | #[diag(no_crate_example, code = "E0456", code = "E0457")]
    |                          ^^^^
 
 error: diagnostic slug must be the first argument
-  --> $DIR/diagnostic-derive.rs:120:43
+  --> $DIR/diagnostic-derive.rs:119:43
    |
 LL | #[diag(no_crate_example, no_crate::example, code = "E0456")]
    |                                           ^
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:125:1
+  --> $DIR/diagnostic-derive.rs:124:1
    |
 LL | struct KindNotProvided {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -168,7 +168,7 @@ LL | struct KindNotProvided {}
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:128:1
+  --> $DIR/diagnostic-derive.rs:127:1
    |
 LL | / #[diag(code = "E0456")]
 LL | |
@@ -178,31 +178,31 @@ LL | | struct SlugNotProvided {}
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: the `#[primary_span]` attribute can only be applied to fields of type `Span` or `MultiSpan`
-  --> $DIR/diagnostic-derive.rs:139:5
+  --> $DIR/diagnostic-derive.rs:138:5
    |
 LL |     #[primary_span]
    |     ^^^^^^^^^^^^^^^
 
 error: `#[nonsense]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:147:5
+  --> $DIR/diagnostic-derive.rs:146:5
    |
 LL |     #[nonsense]
    |     ^^^^^^^^^^^
 
 error: the `#[label(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
-  --> $DIR/diagnostic-derive.rs:164:5
+  --> $DIR/diagnostic-derive.rs:163:5
    |
 LL |     #[label(no_crate_label)]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `name` doesn't refer to a field on this type
-  --> $DIR/diagnostic-derive.rs:172:46
+  --> $DIR/diagnostic-derive.rs:171:46
    |
 LL |     #[suggestion(no_crate_suggestion, code = "{name}")]
    |                                              ^^^^^^^^
 
 error: invalid format string: expected `'}'` but string was terminated
-  --> $DIR/diagnostic-derive.rs:177:10
+  --> $DIR/diagnostic-derive.rs:176:10
    |
 LL | #[derive(Diagnostic)]
    |          ^^^^^^^^^^ expected `'}'` in format string
@@ -211,7 +211,7 @@ LL | #[derive(Diagnostic)]
    = note: this error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: invalid format string: unmatched `}` found
-  --> $DIR/diagnostic-derive.rs:187:10
+  --> $DIR/diagnostic-derive.rs:186:10
    |
 LL | #[derive(Diagnostic)]
    |          ^^^^^^^^^^ unmatched `}` in format string
@@ -220,19 +220,19 @@ LL | #[derive(Diagnostic)]
    = note: this error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: the `#[label(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
-  --> $DIR/diagnostic-derive.rs:207:5
+  --> $DIR/diagnostic-derive.rs:206:5
    |
 LL |     #[label(no_crate_label)]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: suggestion without `code = "..."`
-  --> $DIR/diagnostic-derive.rs:226:5
+  --> $DIR/diagnostic-derive.rs:225:5
    |
 LL |     #[suggestion(no_crate_suggestion)]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: invalid nested attribute
-  --> $DIR/diagnostic-derive.rs:234:18
+  --> $DIR/diagnostic-derive.rs:233:18
    |
 LL |     #[suggestion(nonsense = "bar")]
    |                  ^^^^^^^^
@@ -240,13 +240,13 @@ LL |     #[suggestion(nonsense = "bar")]
    = help: only `no_span`, `style`, `code` and `applicability` are valid nested attributes
 
 error: suggestion without `code = "..."`
-  --> $DIR/diagnostic-derive.rs:234:5
+  --> $DIR/diagnostic-derive.rs:233:5
    |
 LL |     #[suggestion(nonsense = "bar")]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: invalid nested attribute
-  --> $DIR/diagnostic-derive.rs:243:18
+  --> $DIR/diagnostic-derive.rs:242:18
    |
 LL |     #[suggestion(msg = "bar")]
    |                  ^^^
@@ -254,13 +254,13 @@ LL |     #[suggestion(msg = "bar")]
    = help: only `no_span`, `style`, `code` and `applicability` are valid nested attributes
 
 error: suggestion without `code = "..."`
-  --> $DIR/diagnostic-derive.rs:243:5
+  --> $DIR/diagnostic-derive.rs:242:5
    |
 LL |     #[suggestion(msg = "bar")]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: wrong field type for suggestion
-  --> $DIR/diagnostic-derive.rs:266:5
+  --> $DIR/diagnostic-derive.rs:265:5
    |
 LL | /     #[suggestion(no_crate_suggestion, code = "This is suggested code")]
 LL | |
@@ -270,79 +270,79 @@ LL | |     suggestion: Applicability,
    = help: `#[suggestion(...)]` should be applied to fields of type `Span` or `(Span, Applicability)`
 
 error: specified multiple times
-  --> $DIR/diagnostic-derive.rs:282:24
+  --> $DIR/diagnostic-derive.rs:281:24
    |
 LL |     suggestion: (Span, Span, Applicability),
    |                        ^^^^
    |
 note: previously specified here
-  --> $DIR/diagnostic-derive.rs:282:18
+  --> $DIR/diagnostic-derive.rs:281:18
    |
 LL |     suggestion: (Span, Span, Applicability),
    |                  ^^^^
 
 error: specified multiple times
-  --> $DIR/diagnostic-derive.rs:290:33
+  --> $DIR/diagnostic-derive.rs:289:33
    |
 LL |     suggestion: (Applicability, Applicability, Span),
    |                                 ^^^^^^^^^^^^^
    |
 note: previously specified here
-  --> $DIR/diagnostic-derive.rs:290:18
+  --> $DIR/diagnostic-derive.rs:289:18
    |
 LL |     suggestion: (Applicability, Applicability, Span),
    |                  ^^^^^^^^^^^^^
 
 error: `#[label = ...]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:297:5
+  --> $DIR/diagnostic-derive.rs:296:5
    |
 LL |     #[label = "bar"]
    |     ^^^^^^^^^^^^^^^^
 
 error: specified multiple times
-  --> $DIR/diagnostic-derive.rs:448:5
+  --> $DIR/diagnostic-derive.rs:447:5
    |
 LL |     #[suggestion(no_crate_suggestion, code = "...", applicability = "maybe-incorrect")]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: previously specified here
-  --> $DIR/diagnostic-derive.rs:450:24
+  --> $DIR/diagnostic-derive.rs:449:24
    |
 LL |     suggestion: (Span, Applicability),
    |                        ^^^^^^^^^^^^^
 
 error: invalid applicability
-  --> $DIR/diagnostic-derive.rs:456:69
+  --> $DIR/diagnostic-derive.rs:455:69
    |
 LL |     #[suggestion(no_crate_suggestion, code = "...", applicability = "batman")]
    |                                                                     ^^^^^^^^
 
 error: the `#[help(...)]` attribute can only be applied to fields of type `Span`, `MultiSpan`, `bool` or `()`
-  --> $DIR/diagnostic-derive.rs:523:5
+  --> $DIR/diagnostic-derive.rs:522:5
    |
 LL |     #[help(no_crate_help)]
    |     ^^^^^^^^^^^^^^^^^^^^^^
 
 error: a diagnostic slug must be the first argument to the attribute
-  --> $DIR/diagnostic-derive.rs:532:32
+  --> $DIR/diagnostic-derive.rs:531:32
    |
 LL |     #[label(no_crate_label, foo)]
    |                                ^
 
 error: only `no_span` is a valid nested attribute
-  --> $DIR/diagnostic-derive.rs:540:29
+  --> $DIR/diagnostic-derive.rs:539:29
    |
 LL |     #[label(no_crate_label, foo = "...")]
    |                             ^^^
 
 error: only `no_span` is a valid nested attribute
-  --> $DIR/diagnostic-derive.rs:548:29
+  --> $DIR/diagnostic-derive.rs:547:29
    |
 LL |     #[label(no_crate_label, foo("..."))]
    |                             ^^^
 
 error: `#[primary_span]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:560:5
+  --> $DIR/diagnostic-derive.rs:559:5
    |
 LL |     #[primary_span]
    |     ^^^^^^^^^^^^^^^
@@ -350,13 +350,13 @@ LL |     #[primary_span]
    = help: the `primary_span` field attribute is not valid for lint diagnostics
 
 error: `#[error(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:580:1
+  --> $DIR/diagnostic-derive.rs:579:1
    |
 LL | #[error(no_crate_example, code = "E0123")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:580:1
+  --> $DIR/diagnostic-derive.rs:579:1
    |
 LL | / #[error(no_crate_example, code = "E0123")]
 LL | |
@@ -368,13 +368,13 @@ LL | | struct ErrorAttribute {}
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: `#[warn_(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:587:1
+  --> $DIR/diagnostic-derive.rs:586:1
    |
 LL | #[warn_(no_crate_example, code = "E0123")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:587:1
+  --> $DIR/diagnostic-derive.rs:586:1
    |
 LL | / #[warn_(no_crate_example, code = "E0123")]
 LL | |
@@ -386,13 +386,13 @@ LL | | struct WarnAttribute {}
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: `#[lint(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:594:1
+  --> $DIR/diagnostic-derive.rs:593:1
    |
 LL | #[lint(no_crate_example, code = "E0123")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:594:1
+  --> $DIR/diagnostic-derive.rs:593:1
    |
 LL | / #[lint(no_crate_example, code = "E0123")]
 LL | |
@@ -404,13 +404,13 @@ LL | | struct LintAttributeOnSessionDiag {}
    = help: specify the slug as the first argument to the `#[diag(...)]` attribute, such as `#[diag(hir_analysis_example_error)]`
 
 error: `#[lint(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:601:1
+  --> $DIR/diagnostic-derive.rs:600:1
    |
 LL | #[lint(no_crate_example, code = "E0123")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `#[lint(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:601:1
+  --> $DIR/diagnostic-derive.rs:600:1
    |
 LL | #[lint(no_crate_example, code = "E0123")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -418,7 +418,7 @@ LL | #[lint(no_crate_example, code = "E0123")]
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: diagnostic slug not specified
-  --> $DIR/diagnostic-derive.rs:601:1
+  --> $DIR/diagnostic-derive.rs:600:1
    |
 LL | / #[lint(no_crate_example, code = "E0123")]
 LL | |
@@ -431,19 +431,19 @@ LL | | struct LintAttributeOnLintDiag {}
    = help: specify the slug as the first argument to the attribute, such as `#[diag(compiletest_example)]`
 
 error: specified multiple times
-  --> $DIR/diagnostic-derive.rs:611:53
+  --> $DIR/diagnostic-derive.rs:610:53
    |
 LL |     #[suggestion(no_crate_suggestion, code = "...", code = ",,,")]
    |                                                     ^^^^
    |
 note: previously specified here
-  --> $DIR/diagnostic-derive.rs:611:39
+  --> $DIR/diagnostic-derive.rs:610:39
    |
 LL |     #[suggestion(no_crate_suggestion, code = "...", code = ",,,")]
    |                                       ^^^^
 
 error: wrong types for suggestion
-  --> $DIR/diagnostic-derive.rs:620:24
+  --> $DIR/diagnostic-derive.rs:619:24
    |
 LL |     suggestion: (Span, usize),
    |                        ^^^^^
@@ -451,7 +451,7 @@ LL |     suggestion: (Span, usize),
    = help: `#[suggestion(...)]` on a tuple field must be applied to fields of type `(Span, Applicability)`
 
 error: wrong types for suggestion
-  --> $DIR/diagnostic-derive.rs:628:17
+  --> $DIR/diagnostic-derive.rs:627:17
    |
 LL |     suggestion: (Span,),
    |                 ^^^^^^^
@@ -459,13 +459,13 @@ LL |     suggestion: (Span,),
    = help: `#[suggestion(...)]` on a tuple field must be applied to fields of type `(Span, Applicability)`
 
 error: suggestion without `code = "..."`
-  --> $DIR/diagnostic-derive.rs:635:5
+  --> $DIR/diagnostic-derive.rs:634:5
    |
 LL |     #[suggestion(no_crate_suggestion)]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `#[multipart_suggestion(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:642:1
+  --> $DIR/diagnostic-derive.rs:641:1
    |
 LL | #[multipart_suggestion(no_crate_suggestion)]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -473,7 +473,7 @@ LL | #[multipart_suggestion(no_crate_suggestion)]
    = help: consider creating a `Subdiagnostic` instead
 
 error: `#[multipart_suggestion(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:645:1
+  --> $DIR/diagnostic-derive.rs:644:1
    |
 LL | #[multipart_suggestion()]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -481,7 +481,7 @@ LL | #[multipart_suggestion()]
    = help: consider creating a `Subdiagnostic` instead
 
 error: `#[multipart_suggestion(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:649:5
+  --> $DIR/diagnostic-derive.rs:648:5
    |
 LL |     #[multipart_suggestion(no_crate_suggestion)]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -489,7 +489,7 @@ LL |     #[multipart_suggestion(no_crate_suggestion)]
    = help: consider creating a `Subdiagnostic` instead
 
 error: `#[suggestion(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:657:1
+  --> $DIR/diagnostic-derive.rs:656:1
    |
 LL | #[suggestion(no_crate_suggestion, code = "...")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -497,7 +497,7 @@ LL | #[suggestion(no_crate_suggestion, code = "...")]
    = help: `#[label]` and `#[suggestion]` can only be applied to fields
 
 error: `#[label]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:666:1
+  --> $DIR/diagnostic-derive.rs:665:1
    |
 LL | #[label]
    | ^^^^^^^^
@@ -505,31 +505,31 @@ LL | #[label]
    = help: `#[label]` and `#[suggestion]` can only be applied to fields
 
 error: `eager` is the only supported nested attribute for `subdiagnostic`
-  --> $DIR/diagnostic-derive.rs:700:7
+  --> $DIR/diagnostic-derive.rs:699:7
    |
 LL |     #[subdiagnostic(bad)]
    |       ^^^^^^^^^^^^^^^^^^
 
 error: `#[subdiagnostic = ...]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:708:5
+  --> $DIR/diagnostic-derive.rs:707:5
    |
 LL |     #[subdiagnostic = "bad"]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `eager` is the only supported nested attribute for `subdiagnostic`
-  --> $DIR/diagnostic-derive.rs:716:7
+  --> $DIR/diagnostic-derive.rs:715:7
    |
 LL |     #[subdiagnostic(bad, bad)]
    |       ^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `eager` is the only supported nested attribute for `subdiagnostic`
-  --> $DIR/diagnostic-derive.rs:724:7
+  --> $DIR/diagnostic-derive.rs:723:7
    |
 LL |     #[subdiagnostic("bad")]
    |       ^^^^^^^^^^^^^^^^^^^^
 
 error: `#[subdiagnostic(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:732:5
+  --> $DIR/diagnostic-derive.rs:731:5
    |
 LL |     #[subdiagnostic(eager)]
    |     ^^^^^^^^^^^^^^^^^^^^^^^
@@ -537,19 +537,19 @@ LL |     #[subdiagnostic(eager)]
    = help: eager subdiagnostics are not supported on lints
 
 error: expected at least one string literal for `code(...)`
-  --> $DIR/diagnostic-derive.rs:790:23
+  --> $DIR/diagnostic-derive.rs:789:23
    |
 LL |     #[suggestion(code())]
    |                       ^
 
 error: `code(...)` must contain only string literals
-  --> $DIR/diagnostic-derive.rs:798:23
+  --> $DIR/diagnostic-derive.rs:797:23
    |
 LL |     #[suggestion(code(foo))]
    |                       ^^^
 
 error: `#[suggestion(...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:822:5
+  --> $DIR/diagnostic-derive.rs:821:5
    |
 LL |     #[suggestion(no_crate_suggestion, code = "")]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -559,85 +559,85 @@ LL |     #[suggestion(no_crate_suggestion, code = "")]
    = help: to show a variable set of suggestions, use a `Vec` of `Subdiagnostic`s annotated with `#[suggestion(...)]`
 
 error[E0433]: failed to resolve: maybe a missing crate `core`?
-  --> $DIR/diagnostic-derive.rs:55:8
+  --> $DIR/diagnostic-derive.rs:54:8
    |
 LL | #[diag = "E0123"]
    |        ^ maybe a missing crate `core`?
 
 error[E0433]: failed to resolve: maybe a missing crate `core`?
-  --> $DIR/diagnostic-derive.rs:798:23
+  --> $DIR/diagnostic-derive.rs:797:23
    |
 LL |     #[suggestion(code(foo))]
    |                       ^^^ maybe a missing crate `core`?
 
 error[E0433]: failed to resolve: maybe a missing crate `core`?
-  --> $DIR/diagnostic-derive.rs:807:25
+  --> $DIR/diagnostic-derive.rs:806:25
    |
 LL |     #[suggestion(code = 3)]
    |                         ^ maybe a missing crate `core`?
 
 error: cannot find attribute `nonsense` in this scope
-  --> $DIR/diagnostic-derive.rs:60:3
+  --> $DIR/diagnostic-derive.rs:59:3
    |
 LL | #[nonsense(no_crate_example, code = "E0123")]
    |   ^^^^^^^^
 
 error: cannot find attribute `nonsense` in this scope
-  --> $DIR/diagnostic-derive.rs:147:7
+  --> $DIR/diagnostic-derive.rs:146:7
    |
 LL |     #[nonsense]
    |       ^^^^^^^^
 
 error: cannot find attribute `error` in this scope
-  --> $DIR/diagnostic-derive.rs:580:3
+  --> $DIR/diagnostic-derive.rs:579:3
    |
 LL | #[error(no_crate_example, code = "E0123")]
    |   ^^^^^
 
 error: cannot find attribute `warn_` in this scope
-  --> $DIR/diagnostic-derive.rs:587:3
+  --> $DIR/diagnostic-derive.rs:586:3
    |
 LL | #[warn_(no_crate_example, code = "E0123")]
    |   ^^^^^ help: a built-in attribute with a similar name exists: `warn`
 
 error: cannot find attribute `lint` in this scope
-  --> $DIR/diagnostic-derive.rs:594:3
+  --> $DIR/diagnostic-derive.rs:593:3
    |
 LL | #[lint(no_crate_example, code = "E0123")]
    |   ^^^^ help: a built-in attribute with a similar name exists: `link`
 
 error: cannot find attribute `lint` in this scope
-  --> $DIR/diagnostic-derive.rs:601:3
+  --> $DIR/diagnostic-derive.rs:600:3
    |
 LL | #[lint(no_crate_example, code = "E0123")]
    |   ^^^^ help: a built-in attribute with a similar name exists: `link`
 
 error: cannot find attribute `multipart_suggestion` in this scope
-  --> $DIR/diagnostic-derive.rs:642:3
+  --> $DIR/diagnostic-derive.rs:641:3
    |
 LL | #[multipart_suggestion(no_crate_suggestion)]
    |   ^^^^^^^^^^^^^^^^^^^^
 
 error: cannot find attribute `multipart_suggestion` in this scope
-  --> $DIR/diagnostic-derive.rs:645:3
+  --> $DIR/diagnostic-derive.rs:644:3
    |
 LL | #[multipart_suggestion()]
    |   ^^^^^^^^^^^^^^^^^^^^
 
 error: cannot find attribute `multipart_suggestion` in this scope
-  --> $DIR/diagnostic-derive.rs:649:7
+  --> $DIR/diagnostic-derive.rs:648:7
    |
 LL |     #[multipart_suggestion(no_crate_suggestion)]
    |       ^^^^^^^^^^^^^^^^^^^^
 
 error[E0425]: cannot find value `nonsense` in module `crate::fluent_generated`
-  --> $DIR/diagnostic-derive.rs:72:8
+  --> $DIR/diagnostic-derive.rs:71:8
    |
 LL | #[diag(nonsense, code = "E0123")]
    |        ^^^^^^^^ not found in `crate::fluent_generated`
 
 error[E0425]: cannot find value `__code_34` in this scope
-  --> $DIR/diagnostic-derive.rs:804:10
+  --> $DIR/diagnostic-derive.rs:803:10
    |
 LL | #[derive(Diagnostic)]
    |          ^^^^^^^^^^ not found in this scope
@@ -645,7 +645,7 @@ LL | #[derive(Diagnostic)]
    = note: this error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: the trait bound `Hello: IntoDiagnosticArg` is not satisfied
-  --> $DIR/diagnostic-derive.rs:346:12
+  --> $DIR/diagnostic-derive.rs:345:12
    |
 LL | #[derive(Diagnostic)]
    |          ---------- required by a bound introduced by this call

tests/ui-fulldeps/session-diagnostic/invalid-variable.rs

@@ -9,12 +9,11 @@ extern crate rustc_driver;
 extern crate rustc_fluent_macro;
 extern crate rustc_macros;
 extern crate rustc_errors;
-use rustc_fluent_macro::fluent_messages;
 use rustc_macros::Diagnostic;
 use rustc_errors::{SubdiagnosticMessage, DiagnosticMessage};
 extern crate rustc_session;
 
-fluent_messages! { "./example.ftl" }
+rustc_fluent_macro::fluent_messages! { "./example.ftl" }
 
 #[derive(Diagnostic)]
 #[diag(no_crate_bad_reference)]

tests/ui-fulldeps/session-diagnostic/subdiagnostic-derive.rs

@@ -18,11 +18,10 @@ extern crate rustc_session;
 extern crate rustc_span;
 
 use rustc_errors::{Applicability, DiagnosticMessage, SubdiagnosticMessage};
-use rustc_fluent_macro::fluent_messages;
 use rustc_macros::Subdiagnostic;
 use rustc_span::Span;
 
-fluent_messages! { "./example.ftl" }
+rustc_fluent_macro::fluent_messages! { "./example.ftl" }
 
 #[derive(Subdiagnostic)]
 #[label(no_crate_example)]

tests/ui-fulldeps/session-diagnostic/subdiagnostic-derive.stderr

@@ -1,5 +1,5 @@
 error: label without `#[primary_span]` field
-  --> $DIR/subdiagnostic-derive.rs:52:1
+  --> $DIR/subdiagnostic-derive.rs:51:1
    |
 LL | / #[label(no_crate_example)]
 LL | |
@@ -9,127 +9,127 @@ LL | | }
    | |_^
 
 error: diagnostic slug must be first argument of a `#[label(...)]` attribute
-  --> $DIR/subdiagnostic-derive.rs:59:1
+  --> $DIR/subdiagnostic-derive.rs:58:1
    |
 LL | #[label]
    | ^^^^^^^^
 
 error: `#[foo]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:68:1
+  --> $DIR/subdiagnostic-derive.rs:67:1
    |
 LL | #[foo]
    | ^^^^^^
 
 error: `#[label = ...]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:78:1
+  --> $DIR/subdiagnostic-derive.rs:77:1
    |
 LL | #[label = "..."]
    | ^^^^^^^^^^^^^^^^
 
 error: only `no_span` is a valid nested attribute
-  --> $DIR/subdiagnostic-derive.rs:87:9
+  --> $DIR/subdiagnostic-derive.rs:86:9
    |
 LL | #[label(bug = "...")]
    |         ^^^
 
 error: diagnostic slug must be first argument of a `#[label(...)]` attribute
-  --> $DIR/subdiagnostic-derive.rs:87:1
+  --> $DIR/subdiagnostic-derive.rs:86:1
    |
 LL | #[label(bug = "...")]
    | ^^^^^^^^^^^^^^^^^^^^^
 
 error: only `no_span` is a valid nested attribute
-  --> $DIR/subdiagnostic-derive.rs:107:9
+  --> $DIR/subdiagnostic-derive.rs:106:9
    |
 LL | #[label(slug = 4)]
    |         ^^^^
 
 error: diagnostic slug must be first argument of a `#[label(...)]` attribute
-  --> $DIR/subdiagnostic-derive.rs:107:1
+  --> $DIR/subdiagnostic-derive.rs:106:1
    |
 LL | #[label(slug = 4)]
    | ^^^^^^^^^^^^^^^^^^
 
 error: only `no_span` is a valid nested attribute
-  --> $DIR/subdiagnostic-derive.rs:117:9
+  --> $DIR/subdiagnostic-derive.rs:116:9
    |
 LL | #[label(slug("..."))]
    |         ^^^^
 
 error: diagnostic slug must be first argument of a `#[label(...)]` attribute
-  --> $DIR/subdiagnostic-derive.rs:117:1
+  --> $DIR/subdiagnostic-derive.rs:116:1
    |
 LL | #[label(slug("..."))]
    | ^^^^^^^^^^^^^^^^^^^^^
 
 error: diagnostic slug must be first argument of a `#[label(...)]` attribute
-  --> $DIR/subdiagnostic-derive.rs:137:1
+  --> $DIR/subdiagnostic-derive.rs:136:1
    |
 LL | #[label()]
    | ^^^^^^^^^^
 
 error: only `no_span` is a valid nested attribute
-  --> $DIR/subdiagnostic-derive.rs:146:27
+  --> $DIR/subdiagnostic-derive.rs:145:27
    |
 LL | #[label(no_crate_example, code = "...")]
    |                           ^^^^
 
 error: only `no_span` is a valid nested attribute
-  --> $DIR/subdiagnostic-derive.rs:155:27
+  --> $DIR/subdiagnostic-derive.rs:154:27
    |
 LL | #[label(no_crate_example, applicability = "machine-applicable")]
    |                           ^^^^^^^^^^^^^
 
 error: unsupported type attribute for subdiagnostic enum
-  --> $DIR/subdiagnostic-derive.rs:164:1
+  --> $DIR/subdiagnostic-derive.rs:163:1
    |
 LL | #[foo]
    | ^^^^^^
 
 error: `#[bar]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:178:5
+  --> $DIR/subdiagnostic-derive.rs:177:5
    |
 LL |     #[bar]
    |     ^^^^^^
 
 error: `#[bar = ...]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:190:5
+  --> $DIR/subdiagnostic-derive.rs:189:5
    |
 LL |     #[bar = "..."]
    |     ^^^^^^^^^^^^^^
 
 error: `#[bar = ...]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:202:5
+  --> $DIR/subdiagnostic-derive.rs:201:5
    |
 LL |     #[bar = 4]
    |     ^^^^^^^^^^
 
 error: `#[bar(...)]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:214:5
+  --> $DIR/subdiagnostic-derive.rs:213:5
    |
 LL |     #[bar("...")]
    |     ^^^^^^^^^^^^^
 
 error: only `no_span` is a valid nested attribute
-  --> $DIR/subdiagnostic-derive.rs:226:13
+  --> $DIR/subdiagnostic-derive.rs:225:13
    |
 LL |     #[label(code = "...")]
    |             ^^^^
 
 error: diagnostic slug must be first argument of a `#[label(...)]` attribute
-  --> $DIR/subdiagnostic-derive.rs:226:5
+  --> $DIR/subdiagnostic-derive.rs:225:5
    |
 LL |     #[label(code = "...")]
    |     ^^^^^^^^^^^^^^^^^^^^^^
 
 error: the `#[primary_span]` attribute can only be applied to fields of type `Span` or `MultiSpan`
-  --> $DIR/subdiagnostic-derive.rs:255:5
+  --> $DIR/subdiagnostic-derive.rs:254:5
    |
 LL |     #[primary_span]
    |     ^^^^^^^^^^^^^^^
 
 error: label without `#[primary_span]` field
-  --> $DIR/subdiagnostic-derive.rs:252:1
+  --> $DIR/subdiagnostic-derive.rs:251:1
    |
 LL | / #[label(no_crate_example)]
 LL | |
@@ -141,13 +141,13 @@ LL | | }
    | |_^
 
 error: `#[applicability]` is only valid on suggestions
-  --> $DIR/subdiagnostic-derive.rs:265:5
+  --> $DIR/subdiagnostic-derive.rs:264:5
    |
 LL |     #[applicability]
    |     ^^^^^^^^^^^^^^^^
 
 error: `#[bar]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:275:5
+  --> $DIR/subdiagnostic-derive.rs:274:5
    |
 LL |     #[bar]
    |     ^^^^^^
@@ -155,13 +155,13 @@ LL |     #[bar]
    = help: only `primary_span`, `applicability` and `skip_arg` are valid field attributes
 
 error: `#[bar = ...]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:286:5
+  --> $DIR/subdiagnostic-derive.rs:285:5
    |
 LL |     #[bar = "..."]
    |     ^^^^^^^^^^^^^^
 
 error: `#[bar(...)]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:297:5
+  --> $DIR/subdiagnostic-derive.rs:296:5
    |
 LL |     #[bar("...")]
    |     ^^^^^^^^^^^^^
@@ -169,73 +169,73 @@ LL |     #[bar("...")]
    = help: only `primary_span`, `applicability` and `skip_arg` are valid field attributes
 
 error: a diagnostic slug must be the first argument to the attribute
-  --> $DIR/subdiagnostic-derive.rs:329:44
+  --> $DIR/subdiagnostic-derive.rs:328:44
    |
 LL | #[label(no_crate_example, no_crate::example)]
    |                                            ^
 
 error: specified multiple times
-  --> $DIR/subdiagnostic-derive.rs:342:5
+  --> $DIR/subdiagnostic-derive.rs:341:5
    |
 LL |     #[primary_span]
    |     ^^^^^^^^^^^^^^^
    |
 note: previously specified here
-  --> $DIR/subdiagnostic-derive.rs:339:5
+  --> $DIR/subdiagnostic-derive.rs:338:5
    |
 LL |     #[primary_span]
    |     ^^^^^^^^^^^^^^^
 
 error: subdiagnostic kind not specified
-  --> $DIR/subdiagnostic-derive.rs:348:8
+  --> $DIR/subdiagnostic-derive.rs:347:8
    |
 LL | struct AG {
    |        ^^
 
 error: specified multiple times
-  --> $DIR/subdiagnostic-derive.rs:385:46
+  --> $DIR/subdiagnostic-derive.rs:384:46
    |
 LL | #[suggestion(no_crate_example, code = "...", code = "...")]
    |                                              ^^^^
    |
 note: previously specified here
-  --> $DIR/subdiagnostic-derive.rs:385:32
+  --> $DIR/subdiagnostic-derive.rs:384:32
    |
 LL | #[suggestion(no_crate_example, code = "...", code = "...")]
    |                                ^^^^
 
 error: specified multiple times
-  --> $DIR/subdiagnostic-derive.rs:403:5
+  --> $DIR/subdiagnostic-derive.rs:402:5
    |
 LL |     #[applicability]
    |     ^^^^^^^^^^^^^^^^
    |
 note: previously specified here
-  --> $DIR/subdiagnostic-derive.rs:400:5
+  --> $DIR/subdiagnostic-derive.rs:399:5
    |
 LL |     #[applicability]
    |     ^^^^^^^^^^^^^^^^
 
 error: the `#[applicability]` attribute can only be applied to fields of type `Applicability`
-  --> $DIR/subdiagnostic-derive.rs:413:5
+  --> $DIR/subdiagnostic-derive.rs:412:5
    |
 LL |     #[applicability]
    |     ^^^^^^^^^^^^^^^^
 
 error: suggestion without `code = "..."`
-  --> $DIR/subdiagnostic-derive.rs:426:1
+  --> $DIR/subdiagnostic-derive.rs:425:1
    |
 LL | #[suggestion(no_crate_example)]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: invalid applicability
-  --> $DIR/subdiagnostic-derive.rs:436:62
+  --> $DIR/subdiagnostic-derive.rs:435:62
    |
 LL | #[suggestion(no_crate_example, code = "...", applicability = "foo")]
    |                                                              ^^^^^
 
 error: suggestion without `#[primary_span]` field
-  --> $DIR/subdiagnostic-derive.rs:454:1
+  --> $DIR/subdiagnostic-derive.rs:453:1
    |
 LL | / #[suggestion(no_crate_example, code = "...")]
 LL | |
@@ -245,25 +245,25 @@ LL | | }
    | |_^
 
 error: unsupported type attribute for subdiagnostic enum
-  --> $DIR/subdiagnostic-derive.rs:468:1
+  --> $DIR/subdiagnostic-derive.rs:467:1
    |
 LL | #[label]
    | ^^^^^^^^
 
 error: `var` doesn't refer to a field on this type
-  --> $DIR/subdiagnostic-derive.rs:488:39
+  --> $DIR/subdiagnostic-derive.rs:487:39
    |
 LL | #[suggestion(no_crate_example, code = "{var}", applicability = "machine-applicable")]
    |                                       ^^^^^^^
 
 error: `var` doesn't refer to a field on this type
-  --> $DIR/subdiagnostic-derive.rs:507:43
+  --> $DIR/subdiagnostic-derive.rs:506:43
    |
 LL |     #[suggestion(no_crate_example, code = "{var}", applicability = "machine-applicable")]
    |                                           ^^^^^^^
 
 error: `#[suggestion_part]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:530:5
+  --> $DIR/subdiagnostic-derive.rs:529:5
    |
 LL |     #[suggestion_part]
    |     ^^^^^^^^^^^^^^^^^^
@@ -271,7 +271,7 @@ LL |     #[suggestion_part]
    = help: `#[suggestion_part(...)]` is only valid in multipart suggestions, use `#[primary_span]` instead
 
 error: `#[suggestion_part(...)]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:533:5
+  --> $DIR/subdiagnostic-derive.rs:532:5
    |
 LL |     #[suggestion_part(code = "...")]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -279,7 +279,7 @@ LL |     #[suggestion_part(code = "...")]
    = help: `#[suggestion_part(...)]` is only valid in multipart suggestions
 
 error: suggestion without `#[primary_span]` field
-  --> $DIR/subdiagnostic-derive.rs:527:1
+  --> $DIR/subdiagnostic-derive.rs:526:1
    |
 LL | / #[suggestion(no_crate_example, code = "...")]
 LL | |
@@ -291,7 +291,7 @@ LL | | }
    | |_^
 
 error: invalid nested attribute
-  --> $DIR/subdiagnostic-derive.rs:542:42
+  --> $DIR/subdiagnostic-derive.rs:541:42
    |
 LL | #[multipart_suggestion(no_crate_example, code = "...", applicability = "machine-applicable")]
    |                                          ^^^^
@@ -299,7 +299,7 @@ LL | #[multipart_suggestion(no_crate_example, code = "...", applicability = "mac
    = help: only `no_span`, `style` and `applicability` are valid nested attributes
 
 error: multipart suggestion without any `#[suggestion_part(...)]` fields
-  --> $DIR/subdiagnostic-derive.rs:542:1
+  --> $DIR/subdiagnostic-derive.rs:541:1
    |
 LL | / #[multipart_suggestion(no_crate_example, code = "...", applicability = "machine-applicable")]
 LL | |
@@ -310,19 +310,19 @@ LL | | }
    | |_^
 
 error: `#[suggestion_part(...)]` attribute without `code = "..."`
-  --> $DIR/subdiagnostic-derive.rs:552:5
+  --> $DIR/subdiagnostic-derive.rs:551:5
    |
 LL |     #[suggestion_part]
    |     ^^^^^^^^^^^^^^^^^^
 
 error: `#[suggestion_part(...)]` attribute without `code = "..."`
-  --> $DIR/subdiagnostic-derive.rs:560:5
+  --> $DIR/subdiagnostic-derive.rs:559:5
    |
 LL |     #[suggestion_part()]
    |     ^^^^^^^^^^^^^^^^^^^^
 
 error: `#[primary_span]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:569:5
+  --> $DIR/subdiagnostic-derive.rs:568:5
    |
 LL |     #[primary_span]
    |     ^^^^^^^^^^^^^^^
@@ -330,7 +330,7 @@ LL |     #[primary_span]
    = help: multipart suggestions use one or more `#[suggestion_part]`s rather than one `#[primary_span]`
 
 error: multipart suggestion without any `#[suggestion_part(...)]` fields
-  --> $DIR/subdiagnostic-derive.rs:566:1
+  --> $DIR/subdiagnostic-derive.rs:565:1
    |
 LL | / #[multipart_suggestion(no_crate_example)]
 LL | |
@@ -342,91 +342,91 @@ LL | | }
    | |_^
 
 error: `#[suggestion_part(...)]` attribute without `code = "..."`
-  --> $DIR/subdiagnostic-derive.rs:577:5
+  --> $DIR/subdiagnostic-derive.rs:576:5
    |
 LL |     #[suggestion_part]
    |     ^^^^^^^^^^^^^^^^^^
 
 error: `#[suggestion_part(...)]` attribute without `code = "..."`
-  --> $DIR/subdiagnostic-derive.rs:580:5
+  --> $DIR/subdiagnostic-derive.rs:579:5
    |
 LL |     #[suggestion_part()]
    |     ^^^^^^^^^^^^^^^^^^^^
 
 error: `code` is the only valid nested attribute
-  --> $DIR/subdiagnostic-derive.rs:583:23
+  --> $DIR/subdiagnostic-derive.rs:582:23
    |
 LL |     #[suggestion_part(foo = "bar")]
    |                       ^^^
 
 error: the `#[suggestion_part(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
-  --> $DIR/subdiagnostic-derive.rs:588:5
+  --> $DIR/subdiagnostic-derive.rs:587:5
    |
 LL |     #[suggestion_part(code = "...")]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: the `#[suggestion_part(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
-  --> $DIR/subdiagnostic-derive.rs:591:5
+  --> $DIR/subdiagnostic-derive.rs:590:5
    |
 LL |     #[suggestion_part()]
    |     ^^^^^^^^^^^^^^^^^^^^
 
 error: specified multiple times
-  --> $DIR/subdiagnostic-derive.rs:599:37
+  --> $DIR/subdiagnostic-derive.rs:598:37
    |
 LL |     #[suggestion_part(code = "...", code = ",,,")]
    |                                     ^^^^
    |
 note: previously specified here
-  --> $DIR/subdiagnostic-derive.rs:599:23
+  --> $DIR/subdiagnostic-derive.rs:598:23
    |
 LL |     #[suggestion_part(code = "...", code = ",,,")]
    |                       ^^^^
 
 error: `#[applicability]` has no effect if all `#[suggestion]`/`#[multipart_suggestion]` attributes have a static `applicability = "..."`
-  --> $DIR/subdiagnostic-derive.rs:628:5
+  --> $DIR/subdiagnostic-derive.rs:627:5
    |
 LL |     #[applicability]
    |     ^^^^^^^^^^^^^^^^
 
 error: expected exactly one string literal for `code = ...`
-  --> $DIR/subdiagnostic-derive.rs:676:34
+  --> $DIR/subdiagnostic-derive.rs:675:34
    |
 LL |     #[suggestion_part(code("foo"))]
    |                                  ^
 
 error: expected exactly one string literal for `code = ...`
-  --> $DIR/subdiagnostic-derive.rs:687:41
+  --> $DIR/subdiagnostic-derive.rs:686:41
    |
 LL |     #[suggestion_part(code("foo", "bar"))]
    |                                         ^
 
 error: expected exactly one string literal for `code = ...`
-  --> $DIR/subdiagnostic-derive.rs:698:30
+  --> $DIR/subdiagnostic-derive.rs:697:30
    |
 LL |     #[suggestion_part(code(3))]
    |                              ^
 
 error: expected exactly one string literal for `code = ...`
-  --> $DIR/subdiagnostic-derive.rs:709:29
+  --> $DIR/subdiagnostic-derive.rs:708:29
    |
 LL |     #[suggestion_part(code())]
    |                             ^
 
 error: specified multiple times
-  --> $DIR/subdiagnostic-derive.rs:764:1
+  --> $DIR/subdiagnostic-derive.rs:763:1
    |
 LL | #[suggestion(no_crate_example, code = "", style = "hidden", style = "normal")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: previously specified here
-  --> $DIR/subdiagnostic-derive.rs:764:1
+  --> $DIR/subdiagnostic-derive.rs:763:1
    |
 LL | #[suggestion(no_crate_example, code = "", style = "hidden", style = "normal")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `#[suggestion_hidden(...)]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:773:1
+  --> $DIR/subdiagnostic-derive.rs:772:1
    |
 LL | #[suggestion_hidden(no_crate_example, code = "")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -434,7 +434,7 @@ LL | #[suggestion_hidden(no_crate_example, code = "")]
    = help: Use `#[suggestion(..., style = "hidden")]` instead
 
 error: `#[suggestion_hidden(...)]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:781:1
+  --> $DIR/subdiagnostic-derive.rs:780:1
    |
 LL | #[suggestion_hidden(no_crate_example, code = "", style = "normal")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -442,7 +442,7 @@ LL | #[suggestion_hidden(no_crate_example, code = "", style = "normal")]
    = help: Use `#[suggestion(..., style = "hidden")]` instead
 
 error: invalid suggestion style
-  --> $DIR/subdiagnostic-derive.rs:789:51
+  --> $DIR/subdiagnostic-derive.rs:788:51
    |
 LL | #[suggestion(no_crate_example, code = "", style = "foo")]
    |                                                   ^^^^^
@@ -450,25 +450,25 @@ LL | #[suggestion(no_crate_example, code = "", style = "foo")]
    = help: valid styles are `normal`, `short`, `hidden`, `verbose` and `tool-only`
 
 error: expected `= "xxx"`
-  --> $DIR/subdiagnostic-derive.rs:797:49
+  --> $DIR/subdiagnostic-derive.rs:796:49
    |
 LL | #[suggestion(no_crate_example, code = "", style = 42)]
    |                                                 ^
 
 error: a diagnostic slug must be the first argument to the attribute
-  --> $DIR/subdiagnostic-derive.rs:805:48
+  --> $DIR/subdiagnostic-derive.rs:804:48
    |
 LL | #[suggestion(no_crate_example, code = "", style)]
    |                                                ^
 
 error: expected `= "xxx"`
-  --> $DIR/subdiagnostic-derive.rs:813:48
+  --> $DIR/subdiagnostic-derive.rs:812:48
    |
 LL | #[suggestion(no_crate_example, code = "", style("foo"))]
    |                                                ^
 
 error: `#[primary_span]` is not a valid attribute
-  --> $DIR/subdiagnostic-derive.rs:826:5
+  --> $DIR/subdiagnostic-derive.rs:825:5
    |
 LL |     #[primary_span]
    |     ^^^^^^^^^^^^^^^
@@ -477,7 +477,7 @@ LL |     #[primary_span]
    = help: to create a suggestion with multiple spans, use `#[multipart_suggestion]` instead
 
 error: suggestion without `#[primary_span]` field
-  --> $DIR/subdiagnostic-derive.rs:823:1
+  --> $DIR/subdiagnostic-derive.rs:822:1
    |
 LL | / #[suggestion(no_crate_example, code = "")]
 LL | |
@@ -489,115 +489,115 @@ LL | | }
    | |_^
 
 error[E0433]: failed to resolve: maybe a missing crate `core`?
-  --> $DIR/subdiagnostic-derive.rs:97:9
+  --> $DIR/subdiagnostic-derive.rs:96:9
    |
 LL | #[label("...")]
    |         ^^^^^ maybe a missing crate `core`?
 
 error[E0433]: failed to resolve: maybe a missing crate `core`?
-  --> $DIR/subdiagnostic-derive.rs:313:1
+  --> $DIR/subdiagnostic-derive.rs:312:1
    |
 LL | union AC {
    | ^^^^^ maybe a missing crate `core`?
 
 error[E0433]: failed to resolve: maybe a missing crate `core`?
-  --> $DIR/subdiagnostic-derive.rs:583:27
+  --> $DIR/subdiagnostic-derive.rs:582:27
    |
 LL |     #[suggestion_part(foo = "bar")]
    |                           ^ maybe a missing crate `core`?
 
 error[E0433]: failed to resolve: maybe a missing crate `core`?
-  --> $DIR/subdiagnostic-derive.rs:676:28
+  --> $DIR/subdiagnostic-derive.rs:675:28
    |
 LL |     #[suggestion_part(code("foo"))]
    |                            ^^^^^ maybe a missing crate `core`?
 
 error[E0433]: failed to resolve: maybe a missing crate `core`?
-  --> $DIR/subdiagnostic-derive.rs:687:28
+  --> $DIR/subdiagnostic-derive.rs:686:28
    |
 LL |     #[suggestion_part(code("foo", "bar"))]
    |                            ^^^^^ maybe a missing crate `core`?
 
 error[E0433]: failed to resolve: maybe a missing crate `core`?
-  --> $DIR/subdiagnostic-derive.rs:698:28
+  --> $DIR/subdiagnostic-derive.rs:697:28
    |
 LL |     #[suggestion_part(code(3))]
    |                            ^ maybe a missing crate `core`?
 
 error[E0433]: failed to resolve: maybe a missing crate `core`?
-  --> $DIR/subdiagnostic-derive.rs:721:30
+  --> $DIR/subdiagnostic-derive.rs:720:30
    |
 LL |     #[suggestion_part(code = 3)]
    |                              ^ maybe a missing crate `core`?
 
 error[E0433]: failed to resolve: maybe a missing crate `core`?
-  --> $DIR/subdiagnostic-derive.rs:813:48
+  --> $DIR/subdiagnostic-derive.rs:812:48
    |
 LL | #[suggestion(no_crate_example, code = "", style("foo"))]
    |                                                ^ maybe a missing crate `core`?
 
 error: cannot find attribute `foo` in this scope
-  --> $DIR/subdiagnostic-derive.rs:68:3
+  --> $DIR/subdiagnostic-derive.rs:67:3
    |
 LL | #[foo]
    |   ^^^
 
 error: cannot find attribute `foo` in this scope
-  --> $DIR/subdiagnostic-derive.rs:164:3
+  --> $DIR/subdiagnostic-derive.rs:163:3
    |
 LL | #[foo]
    |   ^^^
 
 error: cannot find attribute `bar` in this scope
-  --> $DIR/subdiagnostic-derive.rs:178:7
+  --> $DIR/subdiagnostic-derive.rs:177:7
    |
 LL |     #[bar]
    |       ^^^
 
 error: cannot find attribute `bar` in this scope
-  --> $DIR/subdiagnostic-derive.rs:190:7
+  --> $DIR/subdiagnostic-derive.rs:189:7
    |
 LL |     #[bar = "..."]
    |       ^^^
 
 error: cannot find attribute `bar` in this scope
-  --> $DIR/subdiagnostic-derive.rs:202:7
+  --> $DIR/subdiagnostic-derive.rs:201:7
    |
 LL |     #[bar = 4]
    |       ^^^
 
 error: cannot find attribute `bar` in this scope
-  --> $DIR/subdiagnostic-derive.rs:214:7
+  --> $DIR/subdiagnostic-derive.rs:213:7
    |
 LL |     #[bar("...")]
    |       ^^^
 
 error: cannot find attribute `bar` in this scope
-  --> $DIR/subdiagnostic-derive.rs:275:7
+  --> $DIR/subdiagnostic-derive.rs:274:7
    |
 LL |     #[bar]
    |       ^^^
 
 error: cannot find attribute `bar` in this scope
-  --> $DIR/subdiagnostic-derive.rs:286:7
+  --> $DIR/subdiagnostic-derive.rs:285:7
    |
 LL |     #[bar = "..."]
    |       ^^^
 
 error: cannot find attribute `bar` in this scope
-  --> $DIR/subdiagnostic-derive.rs:297:7
+  --> $DIR/subdiagnostic-derive.rs:296:7
    |
 LL |     #[bar("...")]
    |       ^^^
 
 error[E0425]: cannot find value `slug` in module `crate::fluent_generated`
-  --> $DIR/subdiagnostic-derive.rs:127:9
+  --> $DIR/subdiagnostic-derive.rs:126:9
    |
 LL | #[label(slug)]
    |         ^^^^ not found in `crate::fluent_generated`
 
 error[E0425]: cannot find value `__code_29` in this scope
-  --> $DIR/subdiagnostic-derive.rs:715:10
+  --> $DIR/subdiagnostic-derive.rs:714:10
    |
 LL | #[derive(Subdiagnostic)]
    |          ^^^^^^^^^^^^^ not found in this scope