Auto merge of #115510 - GuillaumeGomez:rollup-wh719bn, r=GuillaumeGomez

Rollup of 3 pull requests

Successful merges:

 - #115478 (Emit unused doc comment warnings for pat and expr fields)
 - #115490 (rustdoc: update comment in search.js for #107629)
 - #115503 (Migrate GUI colors test to original CSS color format)

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

2 files changed, 16 insertions, 2 deletions

diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs
index 4b6917fdfdd..de228bdb850 100644
--- a/compiler/rustc_lint/src/builtin.rs
+++ b/compiler/rustc_lint/src/builtin.rs
@@ -1001,8 +1001,22 @@ impl EarlyLintPass for UnusedDocComment {
         warn_if_doc(cx, arm_span, "match arms", &arm.attrs);
     }
 
+    fn check_pat(&mut self, cx: &EarlyContext<'_>, pat: &ast::Pat) {
+        if let ast::PatKind::Struct(_, _, fields, _) = &pat.kind {
+            for field in fields {
+                warn_if_doc(cx, field.span, "pattern fields", &field.attrs);
+            }
+        }
+    }
+
     fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &ast::Expr) {
         warn_if_doc(cx, expr.span, "expressions", &expr.attrs);
+
+        if let ExprKind::Struct(s) = &expr.kind {
+            for field in &s.fields {
+                warn_if_doc(cx, field.span, "expression fields", &field.attrs);
+            }
+        }
     }
 
     fn check_generic_param(&mut self, cx: &EarlyContext<'_>, param: &ast::GenericParam) {
diff --git a/compiler/rustc_mir_build/src/thir/pattern/mod.rs b/compiler/rustc_mir_build/src/thir/pattern/mod.rs
index c08fe54c39c..7736183027f 100644
--- a/compiler/rustc_mir_build/src/thir/pattern/mod.rs
+++ b/compiler/rustc_mir_build/src/thir/pattern/mod.rs
@@ -555,8 +555,8 @@ impl<'a, 'tcx> PatCtxt<'a, 'tcx> {
                             subpattern: pattern,
                             ascription: Ascription {
                                 annotation,
-                                /// Note that use `Contravariant` here. See the
-                                /// `variance` field documentation for details.
+                                // Note that use `Contravariant` here. See the
+                                // `variance` field documentation for details.
                                 variance: ty::Variance::Contravariant,
                             },
                         },