Sort imports by package names, then by file paths.

R=brianwilkerson@google.com
BUG=

Review URL: https://codereview.chromium.org//1131523005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@45822 260f80e4-7a28-3924-810f-c04153c831b5
2 files changed
tree: 50dcaaee9509ecb5af713f793dc251cdb8a3d570
  1. dart/
  2. deps/