hg: shenandoah/jdk8u/hotspot: [backport] Use CollectedHeap::base() instead of ShenandoahHeap::first_region_bottom()

[ashipile at redhat.com]

Changeset: ca75b384657b
Author:    shade
Date:      2017-05-09 14:16 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/ca75b384657b

[backport] Use CollectedHeap::base() instead of ShenandoahHeap::first_region_bottom()

! src/cpu/aarch64/vm/macroAssembler_aarch64.cpp
! src/cpu/x86/vm/macroAssembler_x86.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.hpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.inline.hpp