WebPage::m_assistedNode can extend the lifetime of a DOM node longer than necessary.
Created attachment 310064 [details] Patch
Comment on attachment 310064 [details] Patch Attachment 310064 [details] did not pass mac-debug-ews (mac): Output: http://webkit-queues.webkit.org/results/3736807 New failing tests: fast/dom/Window/setTimeout-setInterval-unique.html
Created attachment 310069 [details] Archive of layout-test-results from ews113 for mac-elcapitan The attached test failures were seen while running run-webkit-tests on the mac-debug-ews. Bot: ews113 Port: mac-elcapitan Platform: Mac OS X 10.11.6
The failure is unrelated. It's a debug crash on WK1 and patch only affects WK2.
Comment on attachment 310064 [details] Patch Clearing flags on attachment: 310064 Committed r216847: <http://trac.webkit.org/changeset/216847>
All reviewed patches have been landed. Closing bug.