hg: shenandoah/jdk8u/hotspot: [backport] Deferred region cleanup.

[ashipile at redhat.com]

Changeset: e65a9aa209c5
Author:    shade
Date:      2017-05-09 17:35 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/e65a9aa209c5

[backport] Deferred region cleanup.

! src/share/vm/gc_implementation/shenandoah/shenandoahCollectorPolicy.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.hpp