42c79709a4
Also includes https://dart-review.googlesource.com/c/sdk/+/302680 that was reverted because of adding extre diagnostics for Flutter. Change-Id: I4cf7cedfcb67a5af226e609d279551fea0b0dee1 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/302844 Reviewed-by: Samuel Rawlins <srawlins@google.com> Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Konstantin Shcheglov <scheglov@google.com>