[RFA] massively speed up "info var foo" on large programs

[Sergio Durigan Junior]

On Tuesday, July 31 2012, I wrote:

> I have just tested your patch on ppc64 and it works OK; I don't have a
> s390x machine right now but I'll check tomorrow when I wake up.

FWIW the patch also works OK on s390x RHEL 6.3.

-- 
Sergio