Bug 254621

imported/w3c/web-platform-tests/mathml/relations/html5-tree/dynamic-childlist-002.html is a constant text failure on iOS 16 and macOS. HISTORY: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fmathml%2Frelations%2Fhtml5-tree%2Fdynamic-childlist-002.html DIFF TEXT: @@ -5,14 +5,14 @@ FAIL Appending and removing children to mfrac assert_approx_equals: block position (child 0) expected 0 +/- 1 but got 6.84375 FAIL Appending and removing children to mi assert_approx_equals: inline position (child 0) expected -22.34375 +/- 1 but got -8 FAIL Appending and removing children to mmultiscripts assert_approx_equals: inline size expected 0 +/- 1 but got 42.5 -FAIL Appending and removing children to mn assert_approx_equals: block position (child 0) expected -1090 +/- 1 but got -1108 +FAIL Appending and removing children to mn assert_approx_equals: block position (child 0) expected -1104 +/- 1 but got -1122 FAIL Appending and removing children to mo assert_approx_equals: inline position (child 0) expected -87.875 +/- 1 but got -8 FAIL Appending and removing children to mover assert_approx_equals: block position (child 0) expected 0 +/- 1 but got 1.078125 PASS Appending and removing children to mpadded PASS Appending and removing children to mphantom FAIL Appending and removing children to mroot assert_approx_equals: inline position (child 0) expected 0 +/- 1 but got 1.03125 PASS Appending and removing children to mrow -FAIL Appending and removing children to ms assert_approx_equals: block position (child 0) expected -19838 +/- 1 but got -19856 +FAIL Appending and removing children to ms assert_approx_equals: block position (child 0) expected -20532 +/- 1 but got -20550 PASS Appending and removing children to mspace FAIL Appending and removing children to msqrt assert_approx_equals: inline size expected 12.703125 +/- 1 but got 16.640625 PASS Appending and removing children to mstyle @@ -20,9 +20,9 @@ FAIL Appending and removing children to msubsup assert_approx_equals: block position (child 0) expected 0 +/- 1 but got 2.375 FAIL Appending and removing children to msup assert_approx_equals: inline size expected 10.625 +/- 1 but got 0 PASS Appending and removing children to mtable -FAIL Appending and removing children to mtext assert_approx_equals: block position (child 0) expected -5128234 +/- 1 but got -5128252 -FAIL Appending and removing children to munder assert_approx_equals: block position (child 0) expected 0 +/- 1 but got 2 -FAIL Appending and removing children to munderover assert_approx_equals: inline size expected 0 +/- 1 but got 10 +FAIL Appending and removing children to mtext assert_approx_equals: block position (child 0) expected -3981740 +/- 1 but got -3981758 +FAIL Appending and removing children to munder assert_approx_equals: block position (child 0) expected 0 +/- 1 but got 3 +FAIL Appending and removing children to munderover assert_approx_equals: block position (child 0) expected 0 +/- 1 but got 6 PASS Appending and removing children to semantics maction: mfrac: