Make sure GYP supports compiling managed code.

test/win/compiler-flags/compile-as-managed.cc

Index: test/win/compiler-flags/compile-as-managed.cc
diff --git a/test/win/compiler-flags/compile-as-managed.cc b/test/win/compiler-flags/compile-as-managed.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c854c93a4be9c77393631b0e6d358f24aa9613e4
--- /dev/null
+++ b/test/win/compiler-flags/compile-as-managed.cc
@@ -0,0 +1,9 @@
+// Copyright (c) 2014 Google Inc. All rights reserved.

[scottmg, 2015/09/04 19:52:54]

2015

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <vcclr.h>
+
+int main() {
+  return 0;
+}