b909e13241
This fixes the exception you saw during 'Extract Local' refactoring. R=brianwilkerson@google.com BUG= Review URL: https://codereview.chromium.org//1117183002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@45481 260f80e4-7a28-3924-810f-c04153c831b5