hg: shenandoah/jdk: cherry pick 8212243: More gc interface tweaks for arraycopy

[rwestrel at redhat.com]

Changeset: 704d769a833b
Author:    roland
Date:      2018-11-07 09:22 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/704d769a833b

cherry pick 8212243: More gc interface tweaks for arraycopy
Reviewed-by: kvn, eosterlund

! src/hotspot/share/ci/ciInstanceKlass.cpp
! src/hotspot/share/ci/ciInstanceKlass.hpp
! src/hotspot/share/gc/g1/c2/g1BarrierSetC2.cpp
! src/hotspot/share/gc/shared/c2/barrierSetC2.cpp
! src/hotspot/share/gc/shared/c2/barrierSetC2.hpp
! src/hotspot/share/gc/shared/c2/modRefBarrierSetC2.cpp
! src/hotspot/share/gc/shared/c2/modRefBarrierSetC2.hpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.hpp
! src/hotspot/share/gc/z/c2/zBarrierSetC2.cpp
! src/hotspot/share/gc/z/c2/zBarrierSetC2.hpp
! src/hotspot/share/opto/arraycopynode.cpp
! src/hotspot/share/opto/arraycopynode.hpp
! src/hotspot/share/opto/graphKit.cpp
! src/hotspot/share/opto/macro.hpp
! src/hotspot/share/opto/macroArrayCopy.cpp