RFR: Use size_t consistently for region sizes, counts

[Zhengyu Gu]

Good to me.

-Zhengyu

On 03/21/2017 04:23 PM, Aleksey Shipilev wrote:
> Hi,
>
> Compilers complain how we use uint and size_t interchangeably for region sizes,
> counts, and math involving them. This yields everything to size_t:
>   http://cr.openjdk.java.net/~shade/shenandoah/region-idx-size_t/webrev.01/
>
> Going to backport this to 8u later.
>
> Testing: hotspot_gc_shenandoah
>
> Thanks,
> -Aleksey
>