RFR: 8200550: Xcode 9.3 produce warning on heapRegionSet.hpp

[Kim Barrett]

> On Apr 9, 2018, at 3:01 AM, David Holmes <david.holmes at oracle.com> wrote:
> 
> Hi Kim,
> 
> The now GC changes look fine (as did the original GC change). I'll leave the revised GC change to the GC folk.

Thanks.

(I assume you meant s/now GC/non-GC/.)

> Thanks,
> David