We now no longer need the `expr2` function to test expressions whose
type is RecordType.
Also added unit tests of the type parser in mini_types.dart (which was
previously tested only by virtue of its use in other tests).
Change-Id: I5d351f3ff924676b4d84e65c8949f42feca0dab9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/267522
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
Paul Berry
402a05de1b