Merge from rust-lang/rust

Author: lnicola

crates/hir-ty/src/diagnostics/match_check/pat_analysis.rs

@@ -95,7 +95,7 @@ impl<'db> MatchCheckCtx<'db> {
 
         let place_validity = PlaceValidity::from_bool(known_valid_scrutinee.unwrap_or(true));
         // Measured to take ~100ms on modern hardware.
-        let complexity_limit = Some(500000);
+        let complexity_limit = 500000;
         compute_match_usefulness(self, arms, scrut_ty, place_validity, complexity_limit)
     }
 

crates/hir-ty/src/infer/coerce.rs

@@ -399,7 +399,7 @@ impl InferenceTable<'_> {
         // Check that the types which they point at are compatible.
         let from_raw = TyKind::Raw(to_mt, from_inner.clone()).intern(Interner);
 
-        // Although references and unsafe ptrs have the same
+        // Although references and raw ptrs have the same
         // representation, we still register an Adjust::DerefRef so that
         // regionck knows that the region for `a` must be valid here.
         if is_ref {

crates/ide-db/src/generated/lints.rs

@@ -9107,8 +9107,8 @@ The tracking issue for this feature is: [#27721]
         deny_since: None,
     },
     Lint {
-        label: "pattern_complexity",
-        description: r##"# `pattern_complexity`
+        label: "pattern_complexity_limit",
+        description: r##"# `pattern_complexity_limit`
 
 This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use.