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

[Ralph Becket]

Simon Taylor, Thursday, 14 March 2002:
> 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.

It wouldn't take too long to fix.  A global search and replace in
the library and compiler directories would catch most of the cases.

- Ralph
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