[clang-tools-extra] [clang-tidy] Avoid expensive AST traversal in RedundantTypenameCheck (PR #170540)

[Yanzuo Liu via cfe-commits]

================
@@ -18,9 +18,13 @@ using namespace clang::ast_matchers;
 namespace clang::tidy::readability {
 
 void RedundantTypenameCheck::registerMatchers(MatchFinder *Finder) {
-  Finder->addMatcher(typeLoc(unless(hasAncestor(decl(isInstantiated()))))
-                         .bind("nonDependentTypeLoc"),
-                     this);
+  Finder->addMatcher(
+      typeLoc(loc(TypeMatcher(anyOf(typedefType(), tagType(),
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zwuis wrote:

Can we remove `TypeMatcher`?


```diff
-typeLoc(loc(TypeMatcher(anyOf(...))))
+typeLoc(loc(anyOf(...)))
```


https://github.com/llvm/llvm-project/pull/170540