Memory leak

[Stefan Monnier]

We have a pretty serious memory leak.
My Emacs session recently died with a memory full situation (the
process was around 500MB VSZ).  So I took a look around and it seem that
every time I create a new frame, my Emacs session grows by around 10MB
and deleting the frame does not recover this memory.
This memory is not accounted for by the counts returned by
`garbage-collect'.

I'm not sure when this problem got introduced, tho the new font code is
a likely culprit.


        Stefan