RFR: Cherry-pick: JDK-8228369 and JDK-8229470 to sh/jdk

[Aleksey Shipilev]

On 8/13/19 7:39 PM, Roman Kennke wrote:
> I'm gonna need the two for C1 SFX impl:
> 
> changeset:   56916:73d07373584c
> user:        rkennke
> date:        Mon Aug 12 23:37:48 2019 +0200
> summary:     Cherry-pick: 8228369: Shenandoah: Refactor LRB C1 stubs
> 
> changeset:   56917:8c3f4fa2c77f
> tag:         tip
> user:        rkennke
> date:        Tue Aug 13 16:05:58 2019 +0200
> summary:     Cherry-pick: 8229470: Shenandoah: Fix C1 getAndSetObject()
> failure
> 
> Testing: hotspot_gc_shenandoah

OK.

-- 
Thanks,
-Aleksey