Stop using Vector::unsafeAppendWithoutCapacityCheck() in WasmFunctionParser's parse().
Pull request: https://github.com/WebKit/WebKit/pull/20356
Committed 270618@main (c9f3a660aa34): <https://commits.webkit.org/270618@main> Reviewed commits have been landed. Closing PR #20356 and removing active labels.
<rdar://problem/118305447>