Auto merge of #60510 - Centril:rollup-gsndjbp, r=Centril

Rollup of 12 pull requests

Successful merges:

 - #59928 (Make deprecation lint `ambiguous_associated_items` deny-by-default)
 - #60220 (report fatal errors during doctest parsing)
 - #60373 (Tidy: ensure lang features are sorted by since)
 - #60388 (Disallow non-explicit elided lifetimes in async fn)
 - #60393 ( Do not suggest incorrect syntax on pattern type error due to borrow)
 - #60401 (Rename `RUST_LOG` to `RUSTC_LOG`)
 - #60409 (Require a trait in the bounds of existential types)
 - #60455 (Resolve match arm ty when arms diverge)
 - #60457 (Const prop refactoring)
 - #60467 (Avoid repeated interning of static strings.)
 - #60478 (minor compiler doc tweaks)
 - #60501 (Propagate mutability from arguments to local bindings in async fn)

Failed merges:

r? @ghost

1 files changed, 4 insertions, 6 deletions

diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index f70acb3e7da..c5173aa5569 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -8725,9 +8725,9 @@ impl<'a> Parser<'a> {
                 // Check if this is a ident pattern, if so, we can optimize and avoid adding a
                 // `let <pat> = __argN;` statement, instead just adding a `let <pat> = <pat>;`
                 // statement.
-                let (ident, is_simple_pattern) = match input.pat.node {
-                    PatKind::Ident(_, ident, _) => (ident, true),
-                    _ => (ident, false),
+                let (binding_mode, ident, is_simple_pattern) = match input.pat.node {
+                    PatKind::Ident(binding_mode, ident, _) => (binding_mode, ident, true),
+                    _ => (BindingMode::ByValue(Mutability::Immutable), ident, false),
                 };
 
                 // Construct an argument representing `__argN: <ty>` to replace the argument of the
@@ -8755,9 +8755,7 @@ impl<'a> Parser<'a> {
                 let move_local = Local {
                     pat: P(Pat {
                         id,
-                        node: PatKind::Ident(
-                            BindingMode::ByValue(Mutability::Immutable), ident, None,
-                        ),
+                        node: PatKind::Ident(binding_mode, ident, None),
                         span,
                     }),
                     // We explicitly do not specify the type for this statement. When the user's