Port #[rustc_dump_item_bounds]

compiler/rustc_attr_parsing/src/attributes/rustc_dump.rs

@@ -24,3 +24,12 @@ impl<S: Stage> NoArgsAttributeParser<S> for RustcDumpDefParents {
     const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[Allow(Target::Fn)]);
     const CREATE: fn(Span) -> AttributeKind = |_| AttributeKind::RustcDumpDefParents;
 }
+
+pub(crate) struct RustcDumpItemBounds;
+
+impl<S: Stage> NoArgsAttributeParser<S> for RustcDumpItemBounds {
+    const PATH: &[Symbol] = &[sym::rustc_dump_item_bounds];
+    const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
+    const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[Allow(Target::AssocTy)]);
+    const CREATE: fn(Span) -> AttributeKind = |_| AttributeKind::RustcDumpItemBounds;
+}

compiler/rustc_attr_parsing/src/context.rs

@@ -63,7 +63,7 @@
 };
 use crate::attributes::prototype::CustomMirParser;
 use crate::attributes::repr::{AlignParser, AlignStaticParser, ReprParser};
-use crate::attributes::rustc_dump::{RustcDumpUserArgs, RustcDumpDefParents};
+use crate::attributes::rustc_dump::{RustcDumpDefParents, RustcDumpItemBounds, RustcDumpUserArgs};
 use crate::attributes::rustc_internal::{
     RustcHasIncoherentInherentImplsParser, RustcLayoutScalarValidRangeEndParser,
     RustcLayoutScalarValidRangeStartParser, RustcLegacyConstGenericsParser,
@@ -268,7 +268,8 @@ mod late {
         Single<WithoutArgs<ProcMacroParser>>,
         Single<WithoutArgs<PubTransparentParser>>,
         Single<WithoutArgs<RustcCoherenceIsCoreParser>>,
-        Single<WithoutArgs<RustcDumpDefParents >>,
+        Single<WithoutArgs<RustcDumpDefParents>>,
+        Single<WithoutArgs<RustcDumpItemBounds>>,
         Single<WithoutArgs<RustcDumpUserArgs>>,
         Single<WithoutArgs<RustcHasIncoherentInherentImplsParser>>,
         Single<WithoutArgs<RustcLintDiagnosticsParser>>,

compiler/rustc_hir/src/attrs/data_structures.rs

@@ -908,7 +908,10 @@ pub enum AttributeKind {
 
     /// Represents `#[rustc_dump_def_parents]`
     RustcDumpDefParents,
-    
+
+    /// Represents `#[rustc_dump_item_bounds]`
+    RustcDumpItemBounds,
+
     /// Represents `#[rustc_dump_user_args]`
     RustcDumpUserArgs,
 

compiler/rustc_hir/src/attrs/encode_cross_crate.rs

@@ -98,6 +98,7 @@ pub fn encode_cross_crate(&self) -> EncodeCrossCrate {
             RustcBuiltinMacro { .. } => Yes,
             RustcCoherenceIsCore(..) => No,
             RustcDumpDefParents => No,
+            RustcDumpItemBounds => No,
             RustcDumpUserArgs => No,
             RustcHasIncoherentInherentImpls => Yes,
             RustcLayoutScalarValidRangeEnd(..) => Yes,

compiler/rustc_hir_analysis/src/collect/dump.rs

@@ -1,7 +1,7 @@
 use rustc_hir as hir;
+use rustc_hir::attrs::AttributeKind;
 use rustc_hir::def_id::{CRATE_DEF_ID, LocalDefId};
 use rustc_hir::{find_attr, intravisit};
-use rustc_hir::attrs::AttributeKind;
 use rustc_middle::hir::nested_filter;
 use rustc_middle::ty::{self, TyCtxt, TypeVisitableExt};
 use rustc_span::sym;
@@ -39,7 +39,7 @@ pub(crate) fn predicates_and_item_bounds(tcx: TyCtxt<'_>) {
             }
             diag.emit();
         }
-        if tcx.has_attr(id, sym::rustc_dump_item_bounds) {
+        if find_attr!(tcx.get_all_attrs(id), AttributeKind::RustcDumpItemBounds) {
             let bounds = tcx.item_bounds(id).instantiate_identity();
             let span = tcx.def_span(id);
 

compiler/rustc_passes/src/check_attr.rs

@@ -310,6 +310,7 @@ fn check_attributes(
                     | AttributeKind::RustcHasIncoherentInherentImpls
                     | AttributeKind::MustNotSupend { .. }
                     | AttributeKind::RustcDumpUserArgs
+                    | AttributeKind::RustcDumpItemBounds
                     | AttributeKind::RustcDumpDefParents
                 ) => { /* do nothing  */ }
                 Attribute::Unparsed(attr_item) => {
@@ -386,7 +387,6 @@ fn check_attributes(
                             | sym::rustc_evaluate_where_clauses
                             | sym::rustc_dump_vtable
                             | sym::rustc_delayed_bug_from_inside_query
-                            | sym::rustc_dump_item_bounds
                             | sym::rustc_def_path
                             | sym::rustc_partition_reused
                             | sym::rustc_partition_codegened