df2bcb893f
Revert "Remove type variable to work around dart2js bug." This reverts commit r24587. This reverts commit r24588. Review URL: https://codereview.chromium.org//18080015 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24590 260f80e4-7a28-3924-810f-c04153c831b5