function FromArrayObservable(args, scheduler) {
      this._args = args;
      this._scheduler = scheduler;
      __super__.call(this);
    }
This method creates a new Observable sequence from an array-like or iterable object.
@param {Any} arrayLike An array-like or iterable object to convert to an Observable sequence.
@param {Function} [mapFn] Map function to call on every element of the array.
@param {Any} [thisArg] The context to use calling the mapFn if provided.
@param {Scheduler} [scheduler] Optional scheduler to use for scheduling.  If not provided, defaults to Scheduler.currentThread.