Merge System into Support.

llvm-svn: 120297
diff --git a/clang/lib/Basic/FileSystemStatCache.cpp b/clang/lib/Basic/FileSystemStatCache.cpp
index 359e192..8a59050 100644
--- a/clang/lib/Basic/FileSystemStatCache.cpp
+++ b/clang/lib/Basic/FileSystemStatCache.cpp
@@ -12,7 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/Basic/FileSystemStatCache.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include <fcntl.h>
 
 // FIXME: This is terrible, we need this for ::close.