RFR [10]: Bulk backports to sh/jdk10

[Zhengyu Gu]

Good to me.

-Zhengyu

On 05/03/2018 08:43 AM, Aleksey Shipilev wrote:
> http://cr.openjdk.java.net/~shade/shenandoah/backports/jdk10-20180503/webrev.01/
> 
> This backports recent performance-critical bugfixes to sh/jdk10:
> 
>   [backport] Shenandoah region/set iterators should not allow copying
>   [backport] Set ShenandoahMinFreeThreshold default to 10%
> 
> Testing: hotspot_gc_shenandoah {fastdebug|release}
> 
> Thanks,
> -Aleksey
>