Move HeaderSearchOptions into the Lex library, make it intrusively
reference-counted, and hold a reference to it in HeaderSearch.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166583 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/InitHeaderSearch.cpp b/lib/Frontend/InitHeaderSearch.cpp
index 76538a3..4fddd11 100644
--- a/lib/Frontend/InitHeaderSearch.cpp
+++ b/lib/Frontend/InitHeaderSearch.cpp
@@ -14,7 +14,7 @@
 #include "clang/Frontend/Utils.h"
 #include "clang/Basic/FileManager.h"
 #include "clang/Basic/LangOptions.h"
-#include "clang/Frontend/HeaderSearchOptions.h"
+#include "clang/Lex/HeaderSearchOptions.h"
 #include "clang/Lex/HeaderSearch.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/SmallPtrSet.h"