Stop using promise_rejects() under LayoutTests/http/wpt as it has been dropped from upstream testharness.js in favor of promise_rejects_js() / promise_reject_dom().
Created attachment 404584 [details] Patch
Comment on attachment 404584 [details] Patch r=me
ChangeLog entry in LayoutTests/ChangeLog contains OOPS!.
Committed r264539: <https://trac.webkit.org/changeset/264539>
<rdar://problem/65747879>