[clang-tools-extra] [clang-tidy][NFC] optimize unused using decls performance (PR #110200)

[Nicolas van Kempen via cfe-commits]

================
@@ -25,6 +25,13 @@ AST_MATCHER_P(DeducedTemplateSpecializationType, refsToTemplatedDecl,
   return false;
 }
 
+AST_MATCHER_P(Type, getTagDecl, clang::ast_matchers::internal::Matcher<TagDecl>,
----------------
nicovank wrote:

`asTagDecl` maybe?

https://github.com/llvm/llvm-project/pull/110200