don't print invalid labels with `r#`

1 files changed, 7 insertions, 1 deletions

diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs
index cb7f755f524..effcfd54a8f 100644
--- a/compiler/rustc_parse/src/parser/expr.rs
+++ b/compiler/rustc_parse/src/parser/expr.rs
@@ -3094,7 +3094,13 @@ impl<'a> Parser<'a> {
         if let Some((ident, is_raw)) = self.token.lifetime() {
             // Disallow `'fn`, but with a better error message than `expect_lifetime`.
             if matches!(is_raw, IdentIsRaw::No) && ident.without_first_quote().is_reserved() {
-                self.dcx().emit_err(errors::InvalidLabel { span: ident.span, name: ident.name });
+                self.dcx().emit_err(errors::InvalidLabel {
+                    span: ident.span,
+                    // `IntoDiagArg` prints the symbol as if it was an ident,
+                    // so `'break` is printed as `r#break`. We don't want that
+                    // here so convert to string eagerly.
+                    name: ident.without_first_quote().name.to_string(),
+                });
             }
 
             self.bump();