See https://drafts.csswg.org/css-writing-modes/#text-combine-layout
imported/w3c/web-platform-tests/css/css-writing-modes/text-combine-upright-value-all-001.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-writing-modes/text-combine-upright-value-all-002.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-writing-modes/text-combine-upright-value-all-003.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-writing-modes/text-combine-upright-layout-rules-001.html [ ImageOnlyFailure ]
<rdar://problem/87071419>