Make Ahem-COLR.ttf usable by tests above the canvas-color-fonts directory, move glyph-display-list-color.html into its own directory for easier skipping, and remove an unwanted iOS expectation.
Pull request: https://github.com/WebKit/WebKit/pull/861
Committed r294587 (250820@main): <https://commits.webkit.org/250820@main> Reviewed commits have been landed. Closing PR #861 and removing active labels.
<rdar://problem/93682629>