hg: shenandoah/jdk: Shenandoah: More aggressive reference discovery

[rkennke at redhat.com]

Changeset: 87250a60e9e5
Author:    rkennke
Date:      2020-03-26 10:39 +0100
URL:       https://hg.openjdk.java.net/shenandoah/jdk/rev/87250a60e9e5

Shenandoah: More aggressive reference discovery

! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.hpp
! src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp
! src/hotspot/share/gc/shenandoah/shenandoah_globals.hpp
+ test/hotspot/jtreg/gc/shenandoah/TestWeakReferenceChurn.java