Move tools/libclang/RecursiveASTVisitor.h -> include/clang/AST/DataRecursiveASTVisitor.h

This is to make it available so the static analyzer can use it.

llvm-svn: 197766
diff --git a/clang/tools/libclang/IndexBody.cpp b/clang/tools/libclang/IndexBody.cpp
index e08a346..6cc8062 100644
--- a/clang/tools/libclang/IndexBody.cpp
+++ b/clang/tools/libclang/IndexBody.cpp
@@ -8,19 +8,19 @@
 //===----------------------------------------------------------------------===//
 
 #include "IndexingContext.h"
-#include "RecursiveASTVisitor.h"
+#include "clang/AST/DataRecursiveASTVisitor.h"
 
 using namespace clang;
 using namespace cxindex;
 
 namespace {
 
-class BodyIndexer : public cxindex::RecursiveASTVisitor<BodyIndexer> {
+class BodyIndexer : public DataRecursiveASTVisitor<BodyIndexer> {
   IndexingContext &IndexCtx;
   const NamedDecl *Parent;
   const DeclContext *ParentDC;
 
-  typedef RecursiveASTVisitor<BodyIndexer> base;
+  typedef DataRecursiveASTVisitor<BodyIndexer> base;
 public:
   BodyIndexer(IndexingContext &indexCtx,
               const NamedDecl *Parent, const DeclContext *DC)