content: _iteratorNormalCompletion = true
  _didIteratorError = false
  _iteratorError = undefined
  If err = Eval("For _iterator = q.Symbol.iterator()
  _step = /*null*/ To /*undefined*/ Step undefined
    p = _step.value
  End For") Then 
    _didIteratorError = true
    _iteratorError = err
  End If