Our platform build JSC by enabling or disabling `ENABLE_WEBCORE` flag. It is now breaking in cmake configuration phase.
https://github.com/WebKit/WebKit/pull/5469
Committed 255700@main (3260f1c67940): <https://commits.webkit.org/255700@main> Reviewed commits have been landed. Closing PR #5469 and removing active labels.
<rdar://problem/101309640>