RFR (T) 8235685: Shenandoah: Enable leak profiler

[Erik Österlund]

Hi Zhengyu,

Looks good.

/Erik

> On 10 Dec 2019, at 20:45, Zhengyu Gu <zgu at redhat.com> wrote:
> 
> Please review this trivial patch that enables JFR leak profiler for Shenandoah.
> 
> JDK-8235174 enhancement also applies to Shenandoah, we can enable leak profiler as well.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8235685
> Webrev: http://cr.openjdk.java.net/~zgu/JDK-8235685/weberv.00/
> 
> Test:
>  Use jmc to create JFR recording, eyeball Memory->Live Objects
> 
> 
> Thanks,
> 
> -Zhengyu
>