function RepeatObservable(value, repeatCount, scheduler) {
      this.value = value;
      this.repeatCount = repeatCount == null ? -1 : repeatCount;
      this.scheduler = scheduler;
      __super__.call(this);
    }
Generates an observable sequence of integral numbers within a specified range, using the specified scheduler to send out observer messages.
@param {Number} start The value of the first integer in the sequence.
@param {Number} count The number of sequential integers to generate.
@param {Scheduler} [scheduler] Scheduler to run the generator loop on. If not specified, defaults to Scheduler.currentThread.
@returns {Observable} An observable sequence that contains a range of sequential integral numbers.