[m-rev.] for review: predicate equivalence type and inst declarations

[Simon Taylor]

On 14-Mar-2002, Ralph Becket <rafe at cs.mu.OZ.AU> wrote:
> Simon Taylor, Thursday, 14 March 2002:
> > 
> > We still allow mode declarations of the form
> > 	:- mode in :: ground >> ground.
> > so predicate mode declarations using `::' rather
> > than `with_inst' would be ambiguous.
> 
> Why not just disallow this old syntax from now on?

I think that will break too much old code.

Simon.
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