Revert "[AST] Traverse the class type loc inside the member type loc."

This reverts commit 7f93cb6.

The assertion at RecursiveASTVisitor.h:1169 fails when passed a TypeLocNode.
Not sure if the correct fix is to use getTypeLocClass or something else.

Author: Sterling-Augustine

clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp

@@ -407,8 +407,8 @@ TEST(SemanticHighlighting, GetsCorrectTokens) {
       }
     )cpp",
       R"cpp(
-      template<typename $TemplateParameter[[T]],
-        void ($TemplateParameter[[T]]::*$TemplateParameter[[method]])(int)>
+      template<typename $TemplateParameter[[T]], 
+        void (T::*$TemplateParameter[[method]])(int)>
       struct $Class[[G]] {
         void $Method[[foo]](
             $TemplateParameter[[T]] *$Parameter[[O]]) {

clang/include/clang/AST/RecursiveASTVisitor.h

@@ -1162,12 +1162,11 @@ DEF_TRAVERSE_TYPELOC(LValueReferenceType,
 DEF_TRAVERSE_TYPELOC(RValueReferenceType,
                      { TRY_TO(TraverseTypeLoc(TL.getPointeeLoc())); })
 
+// FIXME: location of base class?
 // We traverse this in the type case as well, but how is it not reached through
 // the pointee type?
 DEF_TRAVERSE_TYPELOC(MemberPointerType, {
-  auto *TSI = TL.getClassTInfo();
-  assert(TSI);
-  TRY_TO(TraverseTypeLoc(TSI->getTypeLoc()));
+  TRY_TO(TraverseType(QualType(TL.getTypePtr()->getClass(), 0)));
   TRY_TO(TraverseTypeLoc(TL.getPointeeLoc()));
 })
 

clang/unittests/Tooling/CMakeLists.txt

@@ -42,7 +42,6 @@ add_clang_unittest(ToolingTests
   RecursiveASTVisitorTests/LambdaDefaultCapture.cpp
   RecursiveASTVisitorTests/LambdaExpr.cpp
   RecursiveASTVisitorTests/LambdaTemplateParams.cpp
-  RecursiveASTVisitorTests/MemberPointerTypeLoc.cpp
   RecursiveASTVisitorTests/NestedNameSpecifiers.cpp
   RecursiveASTVisitorTests/ParenExpr.cpp
   RecursiveASTVisitorTests/TemplateArgumentLocTraverser.cpp