[JSC][32bit] Enable concurrency
Created attachment 458462 [details] Patch
Work-in-progress patch as there are still some data races happening in regressions, but I think I know where they are coming from (lock mutex to check tag and unlocking before getting the payload). Once ARM is stable, I'll update the MIPS backend (maybe intel x86 as well).
<rdar://problem/92750919>
Pull request: https://github.com/WebKit/WebKit/pull/5046
Pull request: https://github.com/WebKit/WebKit/pull/16108
Pull request: https://github.com/WebKit/WebKit/pull/20950
Committed 273841@main (55815dc77e79): <https://commits.webkit.org/273841@main> Reviewed commits have been landed. Closing PR #20950 and removing active labels.