public override SyntaxNode VisitIdentifierName(IdentifierNameSyntax node)
        {
            if (!(node.Parent is MemberAccessExpressionSyntax) || ((MemberAccessExpressionSyntax)node.Parent).Expression == node)
            {
                if (node.GetContainingMethod() == null)
                {
                    return base.VisitIdentifierName(node);
                }

                var containingType = node.GetContainingType();
                if (containingType == null || !containingType.Name.StartsWith(enclosingTypeName))
                    return node;

                var symbol = semanticModel.GetSymbolInfo(node).Symbol;
                var isObjectInitializer = node.Parent != null && node.Parent.Parent is InitializerExpressionSyntax;
                if (!isObjectInitializer)
                {
                    if (symbol == null || (new[] { SymbolKind.Field, SymbolKind.Event, SymbolKind.Method, SymbolKind.Property }.Contains(symbol.Kind) && !symbol.ContainingType.Name.StartsWith(enclosingTypeName) && !symbol.IsStatic))
                    {
                        return SyntaxFactory.MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.IdentifierName("_this"), node);
                    }
                }
            }
            return base.VisitIdentifierName(node);
        }