Fix hash table mixup in

[Ian Lance Taylor]

Hans-Peter Nilsson <hp@bitrange.com> writes:

> GC:ing unused vtable
> member functions *could* be worthwhile, but since it's unlikely
> to work in the presence of dynamic linking anyway, maybe it
> isn't.  Pity those monolithic statically linked C++ apps. :-)

The feature was introduced for eCos.  Embedded systems using eCos are
an example of a statically linked C++ app where it is very desirable
to minimize memory footprint.

However, I don't know how much difference this feature made for eCos
applications in practice.

Ian