RFR: 8234602: ZGC: Windows compile error in ZHeuristic

[erik.osterlund at oracle.com]

Hi Stefan,

Looks good and trivial.

Thanks,
/Erik

On 11/21/19 10:08 PM, Stefan Karlsson wrote:
> Hi all,
>
> Please review this trivial fix to silence a windows compiler warning 
> about narrowing a size_t to int.
>
> https://cr.openjdk.java.net/~stefank/8234602/webrev.01/
> https://bugs.openjdk.java.net/browse/JDK-8234602
>
> Thanks,
> StefanK