Adds some basic tests to check for runtime subtyping with JS
interop types. Uses function types only to check for subtyping
relationships. Extends some tests on is and as checks as well.
Change-Id: I9cbc91d0c475fba3213dd9a3443921232c286804
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/170660
Commit-Queue: Srujan Gaddam <srujzs@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Adds a test to verify that JS interop and anonymous classes can
properly extend one another and that member access behaves as
expected.
Change-Id: I98b77444363ec3f985a9a10f3716e15a7fd970f5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/164882
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Srujan Gaddam