In Bug 241027 these suppressions were added to webgl/TestExpectations, but a comment on that bug indicates they should have been placed in the top-level TestExpectations.
Pull request: https://github.com/WebKit/WebKit/pull/1188
Test gardening commit r295077 (251172@main): <https://commits.webkit.org/251172@main> Reviewed commits have been landed. Closing PR #1188 and removing active labels.
<rdar://problem/94556651>