hg: jdk/submit: 8203028: Simplify reference processing in light of JDK-8175797

[kim.barrett at oracle.com]

Changeset: f84ae8aa5d88
Author:    kbarrett
Date:      2018-05-26 03:11 -0400
URL:       http://hg.openjdk.java.net/jdk/submit/rev/f84ae8aa5d88

8203028: Simplify reference processing in light of JDK-8175797
Summary: Removed special handling of Reference.next
Reviewed-by: tschatzl, sjohanss, mchung

! src/hotspot/share/gc/parallel/psCompactionManager.cpp
! src/hotspot/share/gc/parallel/psParallelCompact.cpp
! src/hotspot/share/gc/parallel/psPromotionManager.cpp
! src/hotspot/share/gc/shared/referenceProcessor.cpp
! src/hotspot/share/gc/shared/referenceProcessor.hpp
! src/hotspot/share/oops/instanceRefKlass.cpp
! src/hotspot/share/oops/instanceRefKlass.inline.hpp
! src/java.base/share/classes/java/lang/ref/Reference.java
! src/java.base/share/classes/java/lang/ref/ReferenceQueue.java