We should stay clear of async_test which will cause timeouts in case of assertion failures while promise_test just ends the test.
Pull request: https://github.com/WebKit/WebKit/pull/10570
Committed 260758@main (08509e730a88): <https://commits.webkit.org/260758@main> Reviewed commits have been landed. Closing PR #10570 and removing active labels.
<rdar://problem/105845475>