fix 21529

[Richard Henderson]

On Thu, Aug 04, 2005 at 10:29:57PM -0400, Daniel Berlin wrote:
> If you really wanted to do slightly better, you could probably reuse the
> "used_portions" information that the structure variable creation stuff
> uses, in order to give the instantiation heuristics a fighting chance on
> large structures :)

We know that there are copies of the entire structure.  So the
entire thing is used, no?


r~