Rename PCHWriter.h to ASTWriter.h

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111466 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/FrontendActions.cpp b/lib/Frontend/FrontendActions.cpp
index 8599efb..5bc6506 100644
--- a/lib/Frontend/FrontendActions.cpp
+++ b/lib/Frontend/FrontendActions.cpp
@@ -18,7 +18,7 @@
 #include "clang/Frontend/CompilerInstance.h"
 #include "clang/Frontend/FrontendDiagnostic.h"
 #include "clang/Frontend/Utils.h"
-#include "clang/Serialization/PCHWriter.h"
+#include "clang/Serialization/ASTWriter.h"
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"