merge_pr_58433
[wdspec] Add test for console.clear.
Verify that "console.clear" doesn't trigger "log.entryAdded" event.
Differential Revision: https://phabricator.services.mozilla.com/D286877
bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1866749
gecko-commit: 311ebec6930f24476483a76de44f3f047c10a5d1
gecko-reviewers: jdescottes