a185d6355b
Because -O4 might not have correct semantics. Change-Id: Icaa3ccd1bd219e0c94e7217086c923924061fe9f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/507420 Reviewed-by: Sigurd Meldgaard <sigurdm@google.com> Commit-Queue: Jonas Jensen <jonasfj@google.com>