d4b78e9c60
Add instrumenter to measure subtype checks Change-Id: Ida25671e3e4d572a1eaa2114cb384c6e8c5c769a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/387704 Commit-Queue: Johnni Winther <johnniwinther@google.com> Reviewed-by: Jens Johansen <jensj@google.com>