hg: jdk/jdk: 8245022: ParallelGC abuses StarTask to also include partial objarray scan tasks

[kim.barrett at oracle.com]

Changeset: 3e6fad87eec6
Author:    kbarrett
Date:      2020-05-20 17:21 -0400
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/3e6fad87eec6

8245022: ParallelGC abuses StarTask to also include partial objarray scan tasks
Summary: Change ParallelGC young collections to use ScannerTasks.
Reviewed-by: tschatzl, sjohanss

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/g1/g1CollectedHeap.hpp
! src/hotspot/share/gc/g1/g1CollectedHeap.inline.hpp
! src/hotspot/share/gc/g1/g1ParScanThreadState.hpp
! src/hotspot/share/gc/g1/g1ParScanThreadState.inline.hpp
! src/hotspot/share/gc/parallel/psClosure.inline.hpp
! src/hotspot/share/gc/parallel/psPromotionManager.cpp
! src/hotspot/share/gc/parallel/psPromotionManager.hpp
! src/hotspot/share/gc/parallel/psPromotionManager.inline.hpp
! src/hotspot/share/gc/parallel/psScavenge.cpp