ea21df9dbe
This behaviour should only happen when a post-feature library implements a pre-feature library declaration that has a final/base core library class as a super declaration. Bug: https://github.com/dart-lang/sdk/issues/52115 Change-Id: If42129ba3ba7e337cc6ffc21604c6d0f2976344c Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/301503 Reviewed-by: Nate Bosch <nbosch@google.com> Commit-Queue: Kallen Tu <kallentu@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com>