message: Add navigator.languages
diff: "readonly": true,
  "type": "number"
  },
  + {
  + "kind": "property",
  + "interface": "Navigator",
  + "name": "languages",
  + "readonly": true,
  + "type": "string[]"
  + },
  {
  "kind": "property",
  "interface": "WorkerNavigator",
  