operator [] method
Implementation
NameResolution operator [](int index) {
  if (index < 0 || index >= this.Count) {
    throw new RangeError.value(index, "index", "Strings.IndexIsOutOfRange");
  }
  return this._items[index];
}NameResolution operator [](int index) {
  if (index < 0 || index >= this.Count) {
    throw new RangeError.value(index, "index", "Strings.IndexIsOutOfRange");
  }
  return this._items[index];
}