[8] RFR: Shenandoah: add root statistics for string dedup table/queues

[Zhengyu Gu]

Good to me.

-Zhengyu

On 5/18/20 9:11 AM, Aleksey Shipilev wrote:
> This is sh/jdk8-specific fix to add root statistics for string dedup table/queues. This would match
> what sh/jdk11 and jdk/jdk are doing.
> 
> Webrev:
>   https://cr.openjdk.java.net/~shade/shenandoah/8u-strdedup-root-stats/webrev.01/
> 
> Testing: hotspot_gc_shenandoah, eyeballing gc logs with string dedup enabled
>