[class-prefix-selector-queryselector.tentative.html]
  [querySelectorAll(".foo-*") returns matching elements in document order and excludes non-matches (foobar, foo-)]
    expected: FAIL

  [querySelector(".foo-*") returns the first matching element in document order]
    expected: FAIL

  [querySelectorAll with a selector list containing a class prefix selector does not duplicate an element that matches more than one branch]
    expected: FAIL

  [Element.closest() finds an ancestor via the class prefix selector]
    expected: FAIL

  [Element.closest() matches the element itself first]
    expected: FAIL

  [Element.closest() returns null when no ancestor matches the class prefix selector]
    expected: FAIL