public bool ElementMatch(string localName, string namespaceName) {
Debug.Assert(localName == null || (object) Document.NameTable.Get(localName) == (object) localName, "localName must be atomized.");
return NodeType == XPathNodeType.Element &&
(object) this.info.LocalName == (object) localName &&
this.info.NamespaceUri == namespaceName;
}