RFR (S): 8240590: Add MemRegion::destroy_array to complement introduced create_array

[Stefan Johansson]

Hi Thomas,

> 18 mars 2020 kl. 12:18 skrev Thomas Schatzl <thomas.schatzl at oracle.com>:
> 
> Hi all,
> 
>  can I have reviews for this small change that introduces a MemRegion::destroy_array() method to complement the recently introduced MemRegion::create_array().
> 
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8240590
> Webrev:
> http://cr.openjdk.java.net/~tschatzl/8240590/webrev/
Looks good,
Stefan

> Testing:
> hs-tier1-5
> 
> Thanks,
>  Thomas