[15] RFR 8241793: Shenandoah: Enable concurrent class unloading for aarch64

[Zhengyu Gu]

Hi Stuart,
>>>
>>
> 
> Hi Zhengyu, that looks good to me.
> 
> Is it necessary for there to be so many clauses for testing this in 
> Shenandoah? I'm wondering whether the different modes are likely to be 
> worthwhile for this testing, given the increase in run time it would add.

This test is at tier3 (stress tests), so I think it is fine.

Thanks,

-Zhengyu

> 
> BR,
>      Stuart
>