text: //// [ES5For-of30.ts]
  var a: string, b: number;
  var tuple: [number, string] = [2, "3"];
  for ([a = 1, b = ""] of tuple) {
      a;
      b;
  }
  
  //// [ES5For-of30.js]
  var a, b;
  var tuple = [2, "3"];
  for (var _i = 0; _i < tuple.length; _i++) {
      _a = tuple[_i], _b = _a[0], a = _b === void 0 ? 1 : _b, _c = _a[1], b = _c === void 0 ? "" : _c;
      a;
      b;
  }
  var _a, _b, _c;
  