[interfaces.html]
  prefs: [dom.webcomponents.shadowdom.enabled:true]
  [Document interface: attribute origin]
    expected: FAIL
    bug: 931884

  [Document interface: xmlDoc must inherit property "origin" with the proper type (3)]
    expected: FAIL
    bug: 931884

  [NodeFilter interface: existence and properties of interface object]
    bug: https://github.com/heycam/webidl/issues/96

  [Document interface: new Document() must inherit property "origin" with the proper type (3)]
    expected: FAIL
    bug: 931884

  [Element interface: element must inherit property "assignedSlot" with the proper type (48)]
    expected: FAIL

  [Text interface: document.createTextNode("abc") must inherit property "assignedSlot" with the proper type (2)]
    expected: FAIL

  [AbortSignal interface: new AbortController().signal must inherit property "onabort" with the proper type (1)]
    expected: FAIL

  [AbortSignal interface: new AbortController().signal must inherit property "onabort" with the proper type]
    expected: FAIL

  [Document interface: new Document() must inherit property "origin" with the proper type]
    expected: FAIL

  [Document interface: xmlDoc must inherit property "origin" with the proper type]
    expected: FAIL