ada6029976
Also migrate to null safety, drop unused pedantic dep Change-Id: Ic3be5af7e7933f2bd757e9dcdda62eb5be99c5bf Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/218085 Auto-Submit: Kevin Moore <kevmoo@google.com> Reviewed-by: Devon Carew <devoncarew@google.com> Commit-Queue: Devon Carew <devoncarew@google.com> Commit-Queue: Kevin Moore <kevmoo@google.com>