promise.js
function IteratorNext ( iterator, value ) {
    var result = iterator.next(value);
    if ( Type(result) !== 'object' ) {
      throw TypeError();
    }
    return result;
  }
function IteratorNext ( iterator, value ) {
    var result = iterator.next(value);
    if ( Type(result) !== 'object' ) {
      throw TypeError();
    }
    return result;
  }
function IteratorNext ( iterator , value ) { var result = iterator . next ( value ) ; if ( Type ( result ) !== 'object' ) { throw TypeError ( ) ; } return result ; }
7.4.2 IteratorNext ( iterator, value )
7 . 4 . 2 IteratorNext ( iterator value )