ffd6c48d01
This is a first step towards migrating and merging tests helper classes to one central location. In a following CL, the old `ExpectedError` and `ExpectedContextMessage` will be removed and all clients will be migrated to the version under this package. Bug: https://github.com/dart-lang/sdk/issues/61557 Change-Id: I7fb8a83cbd659192a22848ace99ebafed5dc2b88 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/451542 Commit-Queue: Paul Berry <paulberry@google.com> Auto-Submit: Felipe Morschel <git@fmorschel.dev> Reviewed-by: Paul Berry <paulberry@google.com> Reviewed-by: Konstantin Shcheglov <scheglov@google.com>