ninja/win: Put common msvs_system_include_dirs into %INCLUDE%

test/win/gyptest-system-include.py

Index: test/win/gyptest-system-include.py
diff --git a/test/win/gyptest-midl-excluded.py b/test/win/gyptest-system-include.py
similarity index 61%
copy from test/win/gyptest-midl-excluded.py
copy to test/win/gyptest-system-include.py
index 70059ab64bede557440a70ab0bbedbf42765a466..0936755e4b9dc57cea063d37005f97ce9b30f5b8 100644
--- a/test/win/gyptest-midl-excluded.py
+++ b/test/win/gyptest-system-include.py
@@ -1,22 +1,21 @@
-#!/usr/bin/env python
-
-# Copyright (c) 2014 Google Inc. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-"""
-Test that .idl files in actions and non-native rules are excluded.
-"""
-
-import TestGyp
-
-import sys
-
-if sys.platform == 'win32':
-  test = TestGyp.TestGyp(formats=['msvs', 'ninja'])
-
-  CHDIR = 'idl-excluded'
-  test.run_gyp('idl-excluded.gyp', chdir=CHDIR)
-  test.build('idl-excluded.gyp', test.ALL, chdir=CHDIR)
-
-  test.pass_test()
+#!/usr/bin/env python
+
+# Copyright (c) 2014 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+Checks that msvs_system_include_dirs works.
+"""
+
+import TestGyp
+
+import sys
+
+if sys.platform == 'win32':
+  test = TestGyp.TestGyp(formats=['msvs', 'ninja'])
+
+  CHDIR = 'system-include'
+  test.run_gyp('test.gyp', chdir=CHDIR)
+  test.build('test.gyp', test.ALL, chdir=CHDIR)
+  test.pass_test()