RFR: Split out Full GC stats for parallel cleaning

[Roman Kennke]

Am 18.07.2017 um 18:23 schrieb Aleksey Shipilev:
> This is a leftover from recent work in getting more details from parallel
> cleaning. Full GC contaminates that data now, let's split it out, as we did with
> other counters:
>   http://cr.openjdk.java.net/~shade/shenandoah/stats-fullgc-pc/webrev.01/
>
> Testing: hotspot_gc_shenandoah
>
> Thanks,
> -Aleksey
>
>
Looks good !