[Xpath-ng] More list issues

[David Rosenborg]

Hi Uche,

> I agree with this possible inconsistency.  I did give one option for list 
> syntax that would minimize the need for a list constructor:
> 
> ()
> (1,)
> (1,2)
> 
> etc.
> 
> I don't think I've heard any reaction to this.

I think the syntax is a bit odd. The '(1,)' case looks
somewhat like a typo. If we should go for specific syntax,
I'd rather use the [] or {} pairs. But I'd prefer a function.

Cheers,
David