[idlharness.html]
  type: testharness
  [Performance interface: existence and properties of interface object]
    expected: FAIL

  [Performance interface: existence and properties of interface prototype object]
    expected: FAIL

  [EventTarget interface: window.performance must inherit property "addEventListener" with the proper type (0)]
    expected: FAIL

  [EventTarget interface: calling addEventListener(DOMString,EventListener,boolean) on window.performance with too few arguments must throw TypeError]
    expected: FAIL

  [EventTarget interface: window.performance must inherit property "removeEventListener" with the proper type (1)]
    expected: FAIL

  [EventTarget interface: calling removeEventListener(DOMString,EventListener,boolean) on window.performance with too few arguments must throw TypeError]
    expected: FAIL

  [EventTarget interface: window.performance must inherit property "dispatchEvent" with the proper type (2)]
    expected: FAIL

  [EventTarget interface: calling dispatchEvent(Event) on window.performance with too few arguments must throw TypeError]
    expected: FAIL