hg: shenandoah/jdk9/hotspot: Parallelize object monitor scan during GC

[zgu at redhat.com]

Changeset: f90576f78367
Author:    zgu
Date:      2016-11-23 16:27 -0500
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/f90576f78367

Parallelize object monitor scan during GC

! src/share/vm/gc/shenandoah/shenandoahRootProcessor.cpp
! src/share/vm/gc/shenandoah/shenandoahRootProcessor.hpp
! src/share/vm/runtime/objectMonitor.cpp
! src/share/vm/runtime/objectMonitor.hpp
! src/share/vm/runtime/synchronizer.cpp
! src/share/vm/runtime/synchronizer.hpp