60a9ad6c0b
This was reverted in r38002, because it didn't seem needed. It now looks like it will make the builder more stable. Original CL: https://codereview.chromium.org/363323002/ TBR=ricow@google.com Review URL: https://codereview.chromium.org//439713006 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@38866 260f80e4-7a28-3924-810f-c04153c831b5