[m-rev.] Re: for review: fix simplification of multi-arm switch

[Peter Wang]

2009/6/26 Peter Wang <novalazy at gmail.com>:
> Branches: main
>
> Fix a simplification bug which was introduced with multi-cons_id switch arms.
> Previously a singleton switch could be replaced by the case goal, possibly
> with a functor test beforehand, but that's only true if the case arm is
> applicable to only a single functor.

Committed.
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