msvs: add some touches to many-actions test to make sure incremental works correctly

test/many-actions/gyptest-many-actions-unsorted.py

 #!/usr/bin/env python
 
 # Copyright (c) 2012 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.
 
 """
 Make sure lots of actions in the same target don't cause exceeding command
 line length.
 """
 
 import TestGyp
 
 test = TestGyp.TestGyp()
 
 test.run_gyp('many-actions-unsorted.gyp')
 test.build('many-actions-unsorted.gyp', test.ALL)
 for i in range(15):
   test.built_file_must_exist('generated_%d.h' % i)
+
+# Make sure the optimized cygwin setup doesn't cause problems for incremental
+# builds.
+test.touch('file1')
+test.build('many-actions-unsorted.gyp', test.ALL)
+
+test.touch('file0')
+test.build('many-actions-unsorted.gyp', test.ALL)
+
+test.touch('file2')
+test.touch('file3')
+test.touch('file4')
+test.build('many-actions-unsorted.gyp', test.ALL)
+
 test.pass_test()