47ac47fe90
In anticipation of lints v 2.0. (Note the ignores -- I was leery of making API changes but happy to with some guidance.) See: https://dart-review.googlesource.com/c/sdk/+/237746 Change-Id: I93323e912911bbd62a583b379f0f8140a8ca448d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/237764 Reviewed-by: Ben Konyi <bkonyi@google.com> Commit-Queue: Phil Quitslund <pquitslund@google.com>