internal VSXmlAddNodeChange(AddNodeChange modelChange)
     : base(modelChange)
 {
     _nextNode = modelChange.NextNode;
     _parent   = modelChange.Parent;
 }
 internal VSXmlAddNodeChange(AddNodeChange modelChange)
     : base(modelChange)
 {
     _nextNode = modelChange.NextNode;
     _parent = modelChange.Parent;
 }