Auto merge of #133803 - matthiaskrgr:rollup-8ag5ncy, r=matthiaskrgr

Rollup of 9 pull requests

Successful merges:

 - #132612 (Gate async fn trait bound modifier on `async_trait_bounds`)
 - #133545 (Lint against Symbol::intern on a string literal)
 - #133558 (Structurally resolve in `probe_adt`)
 - #133696 (stabilize const_collections_with_hasher and build_hasher_default_const_new)
 - #133753 (Reduce false positives on some common cases from if-let-rescope lint)
 - #133762 (stabilize const_{size,align}_of_val)
 - #133777 (document -Zrandomize-layout in the unstable book)
 - #133779 (Use correct `hir_id` for array const arg infers)
 - #133796 (Update the definition of `borrowing_sub`)

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 4 insertions, 4 deletions

diff --git a/compiler/rustc_parse/src/parser/ty.rs b/compiler/rustc_parse/src/parser/ty.rs
index 505586e74f1..8cff23c2e32 100644
--- a/compiler/rustc_parse/src/parser/ty.rs
+++ b/compiler/rustc_parse/src/parser/ty.rs
@@ -9,7 +9,7 @@ use rustc_ast::{
 };
 use rustc_errors::{Applicability, PResult};
 use rustc_span::symbol::{Ident, kw, sym};
-use rustc_span::{ErrorGuaranteed, Span, Symbol};
+use rustc_span::{ErrorGuaranteed, Span};
 use thin_vec::{ThinVec, thin_vec};
 
 use super::{Parser, PathStyle, SeqSep, TokenType, Trailing};
@@ -940,7 +940,7 @@ impl<'a> Parser<'a> {
         let asyncness = if self.token.uninterpolated_span().at_least_rust_2018()
             && self.eat_keyword(kw::Async)
         {
-            self.psess.gated_spans.gate(sym::async_closure, self.prev_token.span);
+            self.psess.gated_spans.gate(sym::async_trait_bounds, self.prev_token.span);
             BoundAsyncness::Async(self.prev_token.span)
         } else if self.may_recover()
             && self.token.uninterpolated_span().is_rust_2015()
@@ -951,7 +951,7 @@ impl<'a> Parser<'a> {
                 span: self.prev_token.span,
                 help: HelpUseLatestEdition::new(),
             });
-            self.psess.gated_spans.gate(sym::async_closure, self.prev_token.span);
+            self.psess.gated_spans.gate(sym::async_trait_bounds, self.prev_token.span);
             BoundAsyncness::Async(self.prev_token.span)
         } else {
             BoundAsyncness::Normal
@@ -1136,7 +1136,7 @@ impl<'a> Parser<'a> {
                 Some(ast::Path {
                     span: fn_token_span.to(self.prev_token.span),
                     segments: thin_vec![ast::PathSegment {
-                        ident: Ident::new(Symbol::intern("Fn"), fn_token_span),
+                        ident: Ident::new(sym::Fn, fn_token_span),
                         id: DUMMY_NODE_ID,
                         args: Some(P(ast::GenericArgs::Parenthesized(ast::ParenthesizedArgs {
                             span: args_lo.to(self.prev_token.span),