constructor(finallyState, fallThroughState, allStates, nestedTrys) {
    super(TryState.Kind.FINALLY, allStates, nestedTrys);
    this.finallyState = finallyState;
    this.fallThroughState = fallThroughState;
  }
@param {number} finallyState
   The beginning of the finally block of the try/finally.
@param {number} fallThroughState
   A state reached only by falling off of the end of the finally block of
   the try/finally.
@param {Array.<number>} allStates
@param {TryState} nestedTrys