internal static void ExpectNode(
     IPropertyTreeNavigator reader, PropertyNodeType expect)
 {
     if (reader.NodeType != expect)
     {
         throw PropertyTreesFailure.ReaderWrongPosition(expect, reader.NodeType);
     }
 }
 internal static void ExpectNode(
     IPropertyTreeNavigator reader, PropertyNodeType expect)
 {
     if (reader.NodeType != expect)
         throw PropertyTreesFailure.ReaderWrongPosition(expect, reader.NodeType);
 }