The asserts-enabled and asserts-not-eanbled implementations of this macro don't agree about whether or not it allows a message--allow one for the sake of form--since revision f0224c3ac4969 it's used in at least one place with a message.
Pull request: https://github.com/WebKit/WebKit/pull/16105
Committed 266516@main (c4574f31334d): <https://commits.webkit.org/266516@main> Reviewed commits have been landed. Closing PR #16105 and removing active labels.
<rdar://problem/113275087>