[m-rev.] for review: Fix some bugs with constrained polymorphic modes.

[Peter Wang]

On Thu, 11 Sep 2014 10:56:07 +1000 (EST), Julien Fischer <jfischer at opturion.com> wrote:
> >
> > +:- type expansions == set_tree234(inst_name).
> 
> Move this type closer to where it actually used.  Also I suggest naming it
> inst_expansions rather than just expansions.

Done.  I have commited it now.

Peter