hg: jdk/jdk: 8221435: Shenandoah should not mark through weak roots

[zgu at redhat.com]

Changeset: 7a34a3270270
Author:    zgu
Date:      2019-03-26 12:12 -0400
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/7a34a3270270

8221435: Shenandoah should not mark through weak roots
Reviewed-by: rkennke, shade

! src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp
! src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.hpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp
! src/hotspot/share/gc/shenandoah/shenandoahMarkCompact.cpp
! src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.cpp
! src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.hpp
! src/hotspot/share/gc/shenandoah/shenandoahStringDedup.cpp
! src/hotspot/share/gc/shenandoah/shenandoahStringDedup.hpp
! src/hotspot/share/gc/shenandoah/shenandoahTraversalGC.cpp