RFR: 8209396: Make PtrQueueSets not statically allocated

[Kim Barrett]

> On Aug 13, 2018, at 3:54 AM, Aleksey Shipilev <shade at redhat.com> wrote:
> 
> On 08/13/2018 12:07 AM, Kim Barrett wrote:
>> Webrev:
>> http://cr.openjdk.java.net/~kbarrett/8209396/open.00/
> 
> Looks good.
> 
> -Aleksey

Thanks.