Bug 1718900 [wpt PR 29557] - Update wpt metadata, a=testonly

wpt-pr: 29557
wpt-type: metadata

testing/web-platform/meta/css/css-pseudo/highlight-pseudos-computed.html.ini

@@ -95,3 +95,29 @@
   [getComputedStyle() for ::grammar-error. should be element's default]
     expected: FAIL
 
+  [getComputedStyle() for ::highlight(foo)]
+    expected: FAIL
+
+  [getComputedStyle() for ::highlight(foo): should be element's default]
+    expected: FAIL
+
+  [getComputedStyle() for ::highlight(foo)) should be element's default]
+    expected: FAIL
+
+  [getComputedStyle() for ::highlight(foo)( should be element's default]
+    expected: FAIL
+
+  [getComputedStyle() for ::highlight(foo)(foo) should be element's default]
+    expected: FAIL
+
+  [getComputedStyle() for ::highlight(foo)() should be element's default]
+    expected: FAIL
+
+  [getComputedStyle() for :::highlight(foo) should be element's default]
+    expected: FAIL
+
+  [getComputedStyle() for ::highlight(foo). should be element's default]
+    expected: FAIL
+
+  [Different getComputedStyle() for ::highlight(bar) and same element]
+    expected: FAIL