Check in LLVM r95781.
diff --git a/lib/AST/ASTConsumer.cpp b/lib/AST/ASTConsumer.cpp
new file mode 100644
index 0000000..f37cbde
--- /dev/null
+++ b/lib/AST/ASTConsumer.cpp
@@ -0,0 +1,19 @@
+//===--- ASTConsumer.cpp - Abstract interface for reading ASTs --*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the ASTConsumer class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/ASTConsumer.h"
+#include "clang/AST/DeclGroup.h"
+using namespace clang;
+
+void ASTConsumer::HandleTopLevelDecl(DeclGroupRef D) {}
+