hg: shenandoah/jdk: Expand LRB after compare-and-swap in C2 not in assembler

[roman at kennke.org]

Changeset: 7fafdf65f590
Author:    rkennke
Date:      2019-02-21 18:55 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/7fafdf65f590

Expand LRB after compare-and-swap in C2 not in assembler

! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp
! src/hotspot/cpu/x86/gc/shenandoah/shenandoahBarrierSetAssembler_x86.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.cpp