Ahom text is busted
Created attachment 395249 [details] Patch
<rdar://problem/60571257>
Created attachment 395250 [details] Patch
Created attachment 395430 [details] Patch
Committed r259533: <https://trac.webkit.org/changeset/259533> All reviewed patches have been landed. Closing bug and clearing flags on attachment 395430 [details].