
Towards https://github.com/flutter/flutter/issues/160915 (future cleanup: remove the validation from `flutter/cocoon`). This PR effectively duplicates the logic in https://github.com/flutter/cocoon/pull/4137, in `flutter/flutter`. /cc @jtmcdole
Towards https://github.com/flutter/flutter/issues/160915 (future cleanup: remove the validation from `flutter/cocoon`). This PR effectively duplicates the logic in https://github.com/flutter/cocoon/pull/4137, in `flutter/flutter`. /cc @jtmcdole