Fix 2 failing tests on windows.

editor/build/promote.py

 #!/usr/bin/env python
 # 
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # Dart Editor promote and google storage cleanup tools.
 
 import gsutil
 import optparse
@@ skipping 227 matching lines @@
     to_bucket: the bucket to promote to
   """
   
   src = '{0}/{1}/*'.format(from_bucket, revision)
   integ_rev = '{0}/{1}/'.format(to_bucket, revision)
   integ_latest = '{0}/{1}/'.format(to_bucket, 'latest')
 
   # copy from continuous/REVISION to integration/REVISION
   print 'copying: {0} -> {1}'.format(src, integ_rev)
   _Gsutil(['cp', '-R', '-a', 'public-read', src, integ_rev])
-  _Gsutil(['rm', '-R', '{0}tests'.format(integ_rev)])
 
   # copy from continuous/REVISION to integration/latest
   print 'copying: {0} -> {1}'.format(src, integ_latest)
   _Gsutil(['cp', '-R', '-a', 'public-read', src, integ_latest])
-  _Gsutil(['rm', '-R', '{0}tests'.format(integ_latest)])
 
 
 def _PrintSeparator(text):
   print '================================'
   print '== %s' % text
 
 
 def _PrintFailure(text):
   print '*****************************'
   print '** %s' % text
@@ skipping 10 matching lines @@
   if directory is not None:
     cwd = os.getcwd()
     os.chdir(directory)
   subprocess.call(cmd, env=os.environ)
   if directory is not None:
     os.chdir(cwd)
 
 
 if __name__ == '__main__':
   sys.exit(main())