This is a meta bug that helps following all the bugs required to make WebKitTestRunner support as good as other platforms.
For more work other than the bugs check also the gtk-wk2 Skipped file. At this point it is still not landed, you can find it in the patch uploaded to the bug 69517. If you are going to start working on something in the Skipped file upload the bug, link it to this one and assign it to yourself.
Closing this since we have the basics. We just need to dot the i.