Bug 1642664 [wpt PR 23916] - Update wpt metadata, a=testonly

wpt-pr: 23916
wpt-type: metadata

Differential Revision: https://phabricator.services.mozilla.com/D78781

Author: moz-wptsync-bot

testing/web-platform/meta/mathml/presentation-markup/mrow/no-spacing.html.ini

@@ -0,0 +1,31 @@
+[no-spacing.html]
+  [Spacing inside <mfrac>.]
+    expected: FAIL
+
+  [Spacing inside <munder>.]
+    expected: FAIL
+
+  [Spacing inside <mover>.]
+    expected: FAIL
+
+  [Spacing around <mroot>.]
+    expected: FAIL
+
+  [Spacing inside <msubsup>.]
+    expected: FAIL
+
+  [Spacing inside <munderover>.]
+    expected: FAIL
+
+  [Spacing inside <mmultiscripts>.]
+    expected: FAIL
+
+  [Spacing inside <msup>.]
+    expected: FAIL
+
+  [Spacing inside <msub>.]
+    expected: FAIL
+
+  [Spacing inside <mroot>.]
+    expected: FAIL
+