0bed1ac7f1
This avoid racy access to the optimization counter threshold. TEST=tsan Change-Id: I5bba52e88957022007060893159e26ebe47e40a8 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/419421 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Alexander Aprelev <aam@google.com>