Merge System into Support.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120297 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CIndexer.h b/tools/libclang/CIndexer.h
index 8bcdce3..b40891a 100644
--- a/tools/libclang/CIndexer.h
+++ b/tools/libclang/CIndexer.h
@@ -17,7 +17,7 @@
 
 #include "clang-c/Index.h"
 #include "llvm/ADT/StringRef.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include <vector>
 
 namespace llvm {