Java: fixes for -fno-assume-compiled

[Jeff Sturm]

On 30 Dec 2002, Tom Tromey wrote:
> >> The runtime side is ok once the unsigned change and Andrew's point
> >> (about integer type size) is addressed.
>
> Jeff> Thanks.  I've committed both patches as follows.
>
> Do we want this patch on the 3.3 branch?

It isn't really useful yet, so I'd say "no".  More patches to follow.
Maybe reconsider for the branch later.

Jeff