[JSC] Ignore Intl features when linked-ICU is old
Created attachment 431038 [details] Patch
<rdar://problem/77393100>
Comment on attachment 431038 [details] Patch r=me. Seems unfortunate but necessary.
Committed r278697 (238669@main): <https://commits.webkit.org/238669@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 431038 [details].