public override void VisitLambdaParameterExpression(LambdaParameterExpression node)
		{
			if (node.DisplayType)
			{
				WriteTypeAndName(node.ExpressionType, GetArgumentName(node.Parameter));
			}
			else
			{
				Write(GetArgumentName(node.Parameter));
			}
		}
 public virtual void VisitLambdaParameterExpression(LambdaParameterExpression node)
 {
 }