We currently assume you can just invalidate the direct parent.
Created attachment 415630 [details] patch
Created attachment 415631 [details] patch
Created attachment 415633 [details] patch
Created attachment 415643 [details] patch
Tools/Scripts/svn-apply failed to apply attachment 415643 [details] to trunk. Please resolve the conflicts and upload a new patch.
Created attachment 415650 [details] patch
Committed r270544: <https://trac.webkit.org/changeset/270544> All reviewed patches have been landed. Closing bug and clearing flags on attachment 415650 [details].
<rdar://problem/72098406>
This caused two tests to crash on iOS. Looks like EWS caught it, but CQ landed the change before the result was final. https://ews-build.webkit.org/#/builders/51/builds/3119 https://bugs.webkit.org/show_bug.cgi?id=219702
Reverted r270544 and r270569 for reason: Caused two editing tests to consistently crash on iOS Committed r270594: <https://trac.webkit.org/changeset/270594>
Note: https://trac.webkit.org/changeset/270569/webkit was landed as a follow up build fix, so that will need to be integrated as part of re-landing.
Created attachment 416661 [details] patch
Created attachment 416663 [details] patch
Committed r271055: <https://trac.webkit.org/changeset/271055> All reviewed patches have been landed. Closing bug and clearing flags on attachment 416663 [details].