[m-rev.] for review: better error messages for lambda exprs

[Peter Wang]

On Wed, 11 May 2016 23:37:07 +1000 (AEST), "Zoltan Somogyi" <zoltan.somogyi at runbox.com> wrote:
> 
> 
> On Mon, 9 May 2016 15:11:40 +1000, Peter Wang <novalazy at gmail.com> wrote:
> > Note that Prince has a list of functions including
> > 
> >     :- func ('@') = unicode.
> >     :- func ('^') = unicode.
> >     :- func (':') = unicode.
> >
> > They could be renamed, sure.
> 
> It seems that most people prefer my approach to reporting these
> kinds of syntax errors to yours, so I will be committing my change.
> However, I don't want to cause unnecessary problems, so I will wait
> until you have renamed those functions. Please tell me when you have
> done so.

Go ahead.  It looks like there may be a number of breakages incoming.
We can deal with them all when we know what they are.
We don't update the compiler frequently anyway.

Peter