The "@compile-error" comment is an old not-great way of defining static
error tests.
See: https://github.com/dart-lang/sdk/issues/45634
Change-Id: Idf9012cb8c213b523d1c8bb827e530e0d2cf6609
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/296407
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Jake Macdonald <jakemac@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
