Avoid double-traversing for QualifiedTypeLoc -- we were calling

VisitTypeLoc twice for qualified types, once for the qualified form
and once for the unqualified (though they looked the same by the time
we got to visittypeloc).  Now only visit once, which matches previous
behavior.

Reviewed by nlewycky

llvm-svn: 107754

clang/include/clang/AST/RecursiveASTVisitor.h

@@ -748,9 +748,12 @@ DEF_TRAVERSE_TYPE(ObjCObjectPointerType, {
     return true;                                                       \
   }
 
-DEF_TRAVERSE_TYPELOC(QualifiedTypeLoc, {
-    TRY_TO(TraverseTypeLoc(TL.getUnqualifiedLoc()));
-  })
+template<typename Derived>                                             \
+bool RecursiveASTVisitor<Derived>::TraverseQualifiedTypeLoc(
+                                                         QualifiedTypeLoc TL) {
+  // Move this over to the 'main' typeloc tree.
+  return TraverseTypeLoc(TL.getUnqualifiedLoc());
+}
 
 DEF_TRAVERSE_TYPELOC(BuiltinTypeLoc, { })