[idlharness.html]
  [CSSMediaRule interface: attribute matches]
    expected: FAIL

  [CSSMediaRule interface: cssMediaRule must inherit property "matches" with the proper type]
    expected: FAIL

  [CSSSupportsRule interface: attribute matches]
    expected: FAIL

  [CSSSupportsRule interface: cssSupportsRule must inherit property "matches" with the proper type]
    expected: FAIL