cbfad8f802
For `InterfaceType` keep `element2` deprecated and define `InterfaceElement get element2` instead. Most changes are because of this. Change-Id: I13b888610fc707438c3c97b676f1460e7fc2b040 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/253564 Commit-Queue: Konstantin Shcheglov <scheglov@google.com> Reviewed-by: Samuel Rawlins <srawlins@google.com>