Rename Windows.h to WindowsSupport.h to avoid ambiguity

llvm-svn: 201258
diff --git a/llvm/lib/Support/Windows/DynamicLibrary.inc b/llvm/lib/Support/Windows/DynamicLibrary.inc
index 5a7b219..504471e 100644
--- a/llvm/lib/Support/Windows/DynamicLibrary.inc
+++ b/llvm/lib/Support/Windows/DynamicLibrary.inc
@@ -11,7 +11,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "Windows.h"
+#include "WindowsSupport.h"
 
 #ifdef __MINGW32__
  #include <imagehlp.h>