webgl/2.0.0/conformance/glsl/misc/shader-uniform-packing-restrictions.html is a flaky timeout on macOS Debug WK1 bots https://results.webkit.org/?suite=layout-tests&test=webgl%2F2.0.0%2Fconformance%2Fglsl%2Fmisc%2Fshader-uniform-packing-restrictions.html
Skipped test in https://trac.webkit.org/changeset/270368/webkit
Unsure if this reflects a real issue, or if it is just a byproduct of things being slower in debug configuration.
<rdar://problem/71911589>
Maybe just slow because it's Debug. Possible to add a suppression just for the Debug configuration?
Never mind, I see that was done in Bug 219448.