System/Windows: Use normalized case and include method.

Bigcheese · Bigcheese · commit 8daf3c00c96c · 2010-11-09T15:10:56.000Z
llvm-svn: 118503
diff --git a/llvm/lib/System/Win32/Win32.h b/llvm/lib/System/Win32/Win32.h
@@ -20,7 +20,7 @@
 #define _WIN32_WINNT 0x0500
 
 #include "llvm/Config/config.h" // Get build system configuration settings
-#include "windows.h"
+#include <Windows.h>
 #include <cassert>
 #include <string>
 
