hg: shenandoah/jdk8u/hotspot: [backport] Use lock version heap region memory allocator

[ashipile at redhat.com]

Changeset: 156a54575174
Author:    shade
Date:      2017-05-09 17:44 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/156a54575174

[backport] Use lock version heap region memory allocator

! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.hpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeapRegion.hpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeapRegion.inline.hpp