44f8583425
- Migrate the test runner suites to null safety. - Cleanup old "non-nullable" experiment flags - Force null safety mode in the two suites: - modular_suite.dart: weak null safety - modular_suite_nnbd.dart: sound null safety NOTE: in both cases the source code is treated as null safe code. There are no tests written in a legacy dart version. Change-Id: I19ec25f7b5abc712971771a193c02ebd5283b987 Fixes: https://github.com/dart-lang/sdk/issues/43096 Issue: https://github.com/dart-lang/sdk/issues/46617 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/244500 Reviewed-by: Sigmund Cherem <sigmund@google.com> Commit-Queue: Nicholas Shahan <nshahan@google.com>