clang-tidy module: Update to build against LLVM/Clang 22

Update for LLVM/Clang commit `91cdd35008e9` ([clang] Improve nested name
specifier AST representation, 2025-08-09), which removed dedicated
`ElaboratedType` nodes in favor of storing the elaborated keyword and
name qualifier in separate nodes for the underlying type.

Utilities/ClangTidyModule/OstringstreamUseCmstrcatCheck.cxx

@@ -18,13 +18,10 @@ OstringstreamUseCmstrcatCheck::OstringstreamUseCmstrcatCheck(
 
 void OstringstreamUseCmstrcatCheck::registerMatchers(MatchFinder* Finder)
 {
-  Finder->addMatcher(
-    typeLoc(unless(elaboratedTypeLoc()),
-            optionally(hasParent(elaboratedTypeLoc().bind("parentType"))),
-            loc(qualType(
-              hasDeclaration(namedDecl(hasName("::std::ostringstream"))))))
-      .bind("ostringstream"),
-    this);
+  Finder->addMatcher(typeLoc(loc(qualType(hasDeclaration(
+                               namedDecl(hasName("::std::ostringstream"))))))
+                       .bind("ostringstream"),
+                     this);
 }
 
 void OstringstreamUseCmstrcatCheck::check(

Utilities/ClangTidyModule/UseCmsysFstreamCheck.cxx

@@ -90,8 +90,7 @@ void UseCmsysFstreamCheck::createMatcher(StringRef StdName,
     loc(usingType(throughUsingDecl(namedDecl(hasName(CmsysName)))));
 
   Finder->addMatcher(
-    typeLoc(IsStd, unless(IsCmsys), unless(elaboratedTypeLoc()),
-            optionally(hasParent(elaboratedTypeLoc().bind("parentType"))),
+    typeLoc(IsStd, unless(IsCmsys),
             optionally(hasParent(nestedNameSpecifierLoc().bind("parentName"))))
       .bind(Bind),
     this);