Builtins contained in structs must be hoisted into arguments and other arguments must be moved into a struct
<rdar://problem/104425157>
Pull request: https://github.com/WebKit/WebKit/pull/8830
Committed 259149@main (021a45c18eba): <https://commits.webkit.org/259149@main> Reviewed commits have been landed. Closing PR #8830 and removing active labels.