[MediaQueryList-addListener-handleEvent.html]
  [looks up handleEvent method on every event dispatch]
    expected:
      if (os == "linux") and webrender and not fission and not debug: ["PASS", "FAIL"]
      if (os == "linux") and webrender and fission: ["PASS", "FAIL"]

  [calls handleEvent method of event listener]
    expected:
      if (os == "linux") and webrender: ["PASS", "FAIL"]

  [doesn't look up handleEvent method on callable event listeners]
    expected:
      if (os == "linux") and webrender and not debug and not fission: ["PASS", "FAIL"]
      if (os == "linux") and webrender and not debug and fission: ["PASS", "FAIL"]
      if (os == "linux") and webrender and debug: ["PASS", "FAIL"]

