hg: shenandoah/jdk: 8230773: Shenandoah: enable concurrent class unloading on x86_32 platforms

[zgu at redhat.com]

Changeset: c29454a99107
Author:    zgu
Date:      2019-10-16 15:13 -0400
URL:       https://hg.openjdk.java.net/shenandoah/jdk/rev/c29454a99107

8230773: Shenandoah: enable concurrent class unloading on x86_32 platforms
Reviewed-by: rkennke

! src/hotspot/cpu/x86/gc/shenandoah/shenandoahBarrierSetAssembler_x86.cpp
! src/hotspot/cpu/x86/gc/shenandoah/shenandoahBarrierSetAssembler_x86.hpp
! src/hotspot/cpu/x86/sharedRuntime_x86_32.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_32.cpp
! src/hotspot/share/gc/shenandoah/shenandoahBarrierSetNMethod.cpp
! src/hotspot/share/gc/shenandoah/shenandoahBarrierSetNMethod.hpp
! src/hotspot/share/gc/shenandoah/shenandoahCodeRoots.hpp
! src/hotspot/share/gc/shenandoah/shenandoahConcurrentRoots.cpp