[patch] fix build on architectures with a signed size_t

[Florian Weimer]

* Matthias Klose:

> attached are three patches to build on architectures with a signed size_t
> (s390-linux-gnu).
>
>  - jdk-signed-size_t.diff, there's already a compat SSIZE_T macro in the code,
>    just use it.
>
>  - hotspot-idx_t-signed-size_t.diff, the BitMap code assumes a unsigned
>    size_t.
>
>  - hotspot-params-signed-size_t.diff, command line parameters of type
>    size_t currently are not supported. As a workaround, add casts. This
>    may be better addressed.

So what has happened to this patch?