hg: shenandoah/jdk9/hotspot: Out-of-TLAB evacuation should overwrite stale copies

[ashipile at redhat.com]

Changeset: 6adead593193
Author:    shade
Date:      2017-06-15 12:45 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/6adead593193

Out-of-TLAB evacuation should overwrite stale copies

! src/share/vm/gc/shenandoah/shenandoahHeap.hpp
! src/share/vm/gc/shenandoah/shenandoahHeap.inline.hpp
+ test/gc/shenandoah/acceptance/RetainObjects.java
! test/gc/stress/gcbasher/TestGCBasherWithShenandoah.java