function setToArray(set) {
	  var index = -1,
	      result = Array(set.size);

	  set.forEach(function(value) {
	    result[++index] = value;
	  });
	  return result;
	}
Converts `set` to an array.

@private
@param {Object} set The set to convert.
@returns {Array} Returns the converted array.