737888b223
This eases the porting of Irregexp. TEST=ci Bug: https://github.com/dart-lang/sdk/issues/56573 Change-Id: If31a0585ced3eabaf2dac6af04f83d387a8eab5d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/478080 Reviewed-by: Alexander Aprelev <aam@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>