[Cocoa] Defer creating CTFonts a little longer for "special case" fonts
<rdar://problem/105259235>
Pull request: https://github.com/WebKit/WebKit/pull/9909
Committed 260149@main (99a9366c1abf): <https://commits.webkit.org/260149@main> Reviewed commits have been landed. Closing PR #9909 and removing active labels.