Tests static extension methods on JavaScriptObject work as
expected, as well as making sure it works with package:js. Once
extension types are added, these tests need to be changed to use
those instead.
Change-Id: I9504c8a3a8e466c680b221e259d93c1df5474218
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/199601
Commit-Queue: Srujan Gaddam <srujzs@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Srujan Gaddam