Internal: b/131923608

cc @mehmetf
cc @jonahwilliams

Not sure how much is possible here, but it's a little bit difficult to use UiAutomator with Flutter. Of particular difficulty is the fact that there's no way to provide any sort of identifier for finding elements. With Android Framework development, you can use resource IDs, but there's no parallel with Flutter. Using UiAutomator is useful for testing inside Google because it's used by an internal testing framework that I expect most teams inside of Google will want to use.

Is it possible to create virtual resource IDs when turning the Flutter semantic tree into the Android view tree (my understanding of how things work)?