Inline block and replaced element are separate concepts though they behave quite similarly.
<rdar://problem/100116780>
Created attachment 462428 [details] Patch
Created attachment 462429 [details] Patch
Committed 254666@main (85b11ecf4984): <https://commits.webkit.org/254666@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 462429 [details].