There is a dedicated function called animationShorthandForParsing() to get the `animation` shorthand list of longhands specifically for parsing purposes, but that list matches the similar function generated from CSSProperties.json exactly, and so is redundant and should be removed.
<rdar://problem/118977751>
Pull request: https://github.com/WebKit/WebKit/pull/21098
Committed 271335@main (200b6e4332ed): <https://commits.webkit.org/271335@main> Reviewed commits have been landed. Closing PR #21098 and removing active labels.