[m-rev.] State variable syntax transformation

[Simon Taylor]

On 11-Feb-2002, Ralph Becket <rafe at cs.mu.OZ.AU> wrote:
> Done.  Added the following to the "changes to the language" section
> of the NEWS file (because they were part of builtin.m):
>
> * The builtin predicates !/0 and !/2 from Mercury's Prolog heritage have been
>   removed (`!' is now a prefix operator used in the state variable syntax).

I think this belongs in the "Changes to the Mercury standard library"
section. `!' should have been defined in prolog.m.

You should also remove the commented out declarations for `!' in prolog.m.
 
Simon.
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