Rewrite/FrontendActions.cpp: Tweak to unbreak msvc.

llvm-svn: 149041

clang/lib/Rewrite/FrontendActions.cpp

@@ -23,7 +23,13 @@
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/FileSystem.h"
+
+// FIXME: This is terrible, we need this for ::close.
+#if !defined(_MSC_VER)
 #include <unistd.h>
+#else
+#include <io.h>
+#endif
 
 using namespace clang;