9261a0f698
path.dirname('path/to') returns 'path', not 'to'
R=rnystrom@google.com
Review URL: https://codereview.chromium.org//19492003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@25120 260f80e4-7a28-3924-810f-c04153c831b5