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

[rkennke at redhat.com]

Ok looks good!

Thanks,
Roman

On Mon, 2020-05-18 at 15:11 +0200, 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
>