add test for 38091
add test for 38091

Fixed by earlier parser recovery improvement.

Fix https://github.com/dart-lang/sdk/issues/38091

Change-Id: I9fa4c3870965c1f03bae9f11da6eaf1e65bfabf9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/115904
Reviewed-by: Mike Fairhurst <2002604e76601be549134505841fea93de80dc45@google.com>
Commit-Queue: Dan Rubel <5c5a7a1a3f9344592135bed55605519045cfa711@google.com>

dartino/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk