lab() and lch() are not clamping out of bands values at parse time
Created attachment 420418 [details] Patch
Created attachment 420419 [details] Patch
Created attachment 420474 [details] Patch with title fixed
Committed r272909: <https://commits.webkit.org/r272909> All reviewed patches have been landed. Closing bug and clearing flags on attachment 420474 [details].
<rdar://problem/74394228>