Rename the ASTReader header files.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111474 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Serialization/ASTReaderStmt.cpp b/lib/Serialization/ASTReaderStmt.cpp
index e7ffe57..2b4c92f 100644
--- a/lib/Serialization/ASTReaderStmt.cpp
+++ b/lib/Serialization/ASTReaderStmt.cpp
@@ -12,7 +12,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "clang/Serialization/PCHReader.h"
+#include "clang/Serialization/ASTReader.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/StmtVisitor.h"
 using namespace clang;