RFR [8], 2018-07-09, Bulk backports to sh/jdk8

[Roman Kennke]

Am 09.07.2018 um 16:51 schrieb Aleksey Shipilev:
> http://cr.openjdk.java.net/~shade/shenandoah/backports/jdk8u-20180709/webrev.01/
> 
> This backports recent fixes and improvements to sh/jdk8:
> 
>  [backport] CollectedHeap::max_tlab_size is measured in words
>  [backport] Make in-cset checks use signed bytes to match C2 better
>  [backport] Constify ShHeapRegionSet and ShCollectionSet
>  [backport] Application pacing precision fixes
>  [backport] Adaptive CSet selection overshoots max-CSet
>  [backport] StringInternCleanup times out
>  [backport] Wrap worker id in thread local worker session
>  [backport] Non-cancellable mark loops should have sensible stride
>  [backport] Forceful SATB buffer flushes should be time-periodic, not traffic-dependent
>  [backport] Verify global and local gc-state status
>  [backport] Full GC should not always update references
>  [backport] Remove safe_equals()
>  [backport] Concurrent uncommit should be recorded as GC event
>  [backport] Uncommit should relinquish the heap lock regularly
>  [backport] Cleanup UseShenandoahOWST blocks
> 
> Testing: hotspot_tier3_gc_shenandoah {fastdebug|release}
> 
> Thanks,
> -Aleksey
> 

Looks good. Thanks!
Roman