[m-dev.] diff: fix the value numbering bug reported by Simon

[Fergus Henderson]

On 06-Nov-1998, Zoltan Somogyi <zs at cs.mu.OZ.AU> wrote:
> 
> Fix the problem that was causing tests/hard_coded/nondet_ctrl_vn to fail
> sporadically when compiled with value numbering.

That fix looks fine to me, thanks.

-- 
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