35c011c030
* Update optionalTypeArgs to consider mixins and static extensions * Update visibleForOverriding to consider mixins * Update visibleForTesting to consider private declarations, and declarations on unnamed mixins Bug: https://github.com/dart-lang/sdk/issues/38105 Change-Id: I50b87e0fafd7960abc945b240788b1a640f78621 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/115067 Auto-Submit: Samuel Rawlins <srawlins@google.com> Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Samuel Rawlins <srawlins@google.com>