cc5b77a710
Add a case for `undefined` whenever a case expression is a null constant. Issue: https://github.com/dart-lang/sdk/issues/51527 Change-Id: I6e9946b588e293bcf0b953d568495c8be95f3749 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/310775 Commit-Queue: Nicholas Shahan <nshahan@google.com> Reviewed-by: Stephen Adams <sra@google.com>