The 'should save an edit' test is skipped because saving an edit fails
in CI because of T309712.
Bug: T296187
Bug: T309712
Change-Id: Ie4f067ed9b49a993acadaa01c953a9fe46aaae81
A better assertion if the VisualEditor is opened would be to check for
editing toolbar instead of checking for a notices popup.
Bug: T296187
Change-Id: Ide816646254bc856b44725490c25b2b9962188c9