e585605488
Rationale: Step towards parallel execution. Change-Id: I1c6ba3eaa33834d6f4b7ba5489acca567fc00b3d Reviewed-on: https://dart-review.googlesource.com/c/83041 Reviewed-by: Alexander Thomas <athom@google.com> Commit-Queue: Aart Bik <ajcbik@google.com>