This bug doesn't depend on exports and instead of the constructed class hierarchy. See: https://dart-review.googlesource.com/c/sdk/+/162383/comment/9196db98_412d446d/ Change-Id: Ib107d3fa3ab7782bee5db59754583b20976832a6 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/162785 Reviewed-by: Sigmund Cherem <sigmund@google.com> Commit-Queue: Mark Zhou <markzipan@google.com>
