8a1e69063e
- In development mode (DDC) the extra null safety errors will be thrown. - Remove extra code paths that called unsound helpers. - Fix expectations in weak_null_safety_errors_test.dart. Change-Id: I107c602b0ae38b13038e501564cba9b8cfc58e70 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/329568 Reviewed-by: Mayank Patke <fishythefish@google.com> Commit-Queue: Nicholas Shahan <nshahan@google.com>