Rollup merge of #102591 - JarvisCraft:fix-double-a-article, r=compiler-errors

Fix duplicate usage of `a` article.

This fixes a typo first appearing in #94624 in which test-macro diagnostic uses "a" article twice.

Since I searched the sources for " a a " sequences, I also fixed the same issue in a few files where I found it.

1 files changed, 1 insertions, 1 deletions

diff --git a/compiler/rustc_builtin_macros/src/test.rs b/compiler/rustc_builtin_macros/src/test.rs
index 7efb6cc61ee..705141614e2 100644
--- a/compiler/rustc_builtin_macros/src/test.rs
+++ b/compiler/rustc_builtin_macros/src/test.rs
@@ -115,7 +115,7 @@ pub fn expand_test_or_bench(
             // reworked in the future to not need it, it'd be nice.
             _ => diag.struct_span_err(attr_sp, msg).forget_guarantee(),
         };
-        err.span_label(attr_sp, "the `#[test]` macro causes a a function to be run on a test and has no effect on non-functions")
+        err.span_label(attr_sp, "the `#[test]` macro causes a function to be run on a test and has no effect on non-functions")
             .span_label(item.span, format!("expected a non-associated function, found {} {}", item.kind.article(), item.kind.descr()))
             .span_suggestion(attr_sp, "replace with conditional compilation to make the item only exist when tests are being run", "#[cfg(test)]", Applicability::MaybeIncorrect)
             .emit();