5f8b3e8283
Remove compile time errors from null_test.dart and move them into a new static error test file. Add the other mixin application syntax. This makes it so much easier to run and debug null_test.dart on a backend. Change-Id: I126a580ccf477962cd90dccff267034bd9b35a2b Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/254722 Commit-Queue: Erik Ernst <eernst@google.com> Auto-Submit: Nicholas Shahan <nshahan@google.com> Reviewed-by: Erik Ernst <eernst@google.com>