hg: shenandoah/jdk: Simplify resolve_forwarded_pointer shape and uses

[shade at redhat.com]

Changeset: 6041f00b663f
Author:    shade
Date:      2019-05-10 21:43 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/6041f00b663f

Simplify resolve_forwarded_pointer shape and uses

! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.hpp
! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetC1_aarch64.cpp
! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoah_aarch64.ad
! src/hotspot/cpu/x86/gc/shenandoah/shenandoahBarrierSetAssembler_x86.cpp
! src/hotspot/cpu/x86/gc/shenandoah/shenandoahBarrierSetAssembler_x86.hpp
! src/hotspot/cpu/x86/gc/shenandoah/shenandoahBarrierSetC1_x86.cpp
! src/hotspot/cpu/x86/gc/shenandoah/shenandoah_x86_64.ad
! src/hotspot/share/gc/shenandoah/c1/shenandoahBarrierSetC1.hpp