Fixes https://github.com/dart-lang/language/issues/3650. Fixes https://github.com/dart-lang/sdk/issues/55436. Bug: https://github.com/dart-lang/language/issues/3650 Change-Id: I30b39221c85713aab10f2edc35625f38e34cae5e Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/362100 Reviewed-by: Chloe Stefantsova <cstefantsova@google.com> Commit-Queue: Paul Berry <paulberry@google.com>