[highlight-pseudo-parsing.html]
  ["::highlight(foo)" should be a valid selector]
    expected: FAIL

  [".a::highlight(foo)" should be a valid selector]
    expected: FAIL

  ["div ::highlight(foo)" should be a valid selector]
    expected: FAIL

  ["::part(my-part)::highlight(foo)" should be a valid selector]
    expected: FAIL

