border radii may have missing values
<rdar://87068309>
Created attachment 448394 [details] patch
This code was reverted in https://trac.webkit.org/changeset/287609/webkit
Created attachment 448417 [details] patch
Committed r287672 (245769@main): <https://commits.webkit.org/245769@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 448417 [details].