RecursiveASTVisitor: inline a macro that is only used once

clang/include/clang/AST/RecursiveASTVisitor.h

while (!LocalQueue.empty()) {
     } else {
       LocalQueue.pop_back();
     }
   }
 
   return true;
 }
 
-#define DISPATCH(NAME, CLASS, VAR)                                             \
-  return getDerived().Traverse##NAME(static_cast<CLASS *>(VAR))
-
 template <typename Derived>
 bool RecursiveASTVisitor<Derived>::TraverseType(QualType T) {
   if (T.isNull())
     return true;
 
   switch (T->getTypeClass()) {
 #define ABSTRACT_TYPE(CLASS, BASE)
 #define TYPE(CLASS, BASE)                                                      \
   case Type::CLASS:                                                            \
-    DISPATCH(CLASS##Type, CLASS##Type, const_cast<Type *>(T.getTypePtr()));
+    return getDerived().Traverse##CLASS##Type(                                 \
+        static_cast<CLASS##Type *>(const_cast<Type *>(T.getTypePtr())));
 #include "clang/AST/TypeNodes.inc"
   }
 
   return true;
 }
 
 template <typename Derived>
 bool RecursiveASTVisitor<Derived>::TraverseTypeLoc(TypeLoc TL) {
case Decl::CLASS:                                                            \
     if (!getDerived().Traverse##CLASS##Decl(static_cast<CLASS##Decl *>(D)))    \
       return false;                                                            \
     break;
 #include "clang/AST/DeclNodes.inc"
   }
   return true;
 }
 
-#undef DISPATCH
-
 template <typename Derived>
 bool RecursiveASTVisitor<Derived>::TraverseNestedNameSpecifier(
     NestedNameSpecifier *NNS) {
   if (!NNS)
     return true;
 
   if (NNS->getPrefix())
     TRY_TO(TraverseNestedNameSpecifier(NNS->getPrefix()));