public XPathDescendantIterator(XPathDescendantIterator it) : base(it) { }
public XPathDescendantIterator(XPathDescendantIterator it) : base(it) {}
public XPathDescendantIterator(XPathDescendantIterator it) : base(it) { }
public XPathDescendantIterator(XPathDescendantIterator it) : base(it) {}