Fix the build (TBR)

Fix the build. Not sure why this test passes on my local machine but not on the bot.

Committed: https://code.google.com/p/dart/source/detail?r=32262

[Brian Wilkerson, 2014-02-03 20:55:36]

Committed patchset #1 manually as r32262 (presubmit successful).

[scheglov, 2014-02-03 20:56:24]

lgtm