We need tests similar to the WI.Table tests below: inspector/table/table-remove-rows.html inspector/table/table-selection.html
<rdar://problem/46291225>
See <https://bugs.webkit.org/show_bug.cgi?id=192388#c31>
See <https://bugs.webkit.org/show_bug.cgi?id=192116#c14>.
See https://bugs.webkit.org/show_bug.cgi?id=194254#c5.