019dae1904
The new front end builders will continue to run them. Change-Id: Iffd5af76bd3a082256ea4fb146981737462938f9 Reviewed-on: https://dart-review.googlesource.com/46042 Commit-Queue: Alexander Thomas <athom@google.com> Reviewed-by: William Hesse <whesse@google.com> Reviewed-by: Peter von der Ahé <ahe@google.com>