it does not compute the line position properly (missing writing direction flip).
<rdar://79887141>
Created attachment 432633 [details] Patch
Comment on attachment 432633 [details] Patch Can we make a test?
Created attachment 432658 [details] Patch
Committed r279463 (239319@main): <https://commits.webkit.org/239319@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 432658 [details].