hg: shenandoah/jdk9/hotspot: Parallelize CLDG and CodeCache root scanning and evacuation

[zgu at redhat.com]

Changeset: 8c4c934a3fa8
Author:    zgu
Date:      2016-10-18 09:31 -0400
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/8c4c934a3fa8

Parallelize CLDG and CodeCache root scanning and evacuation

! src/share/vm/classfile/classLoaderData.cpp
! src/share/vm/classfile/classLoaderData.hpp
! src/share/vm/code/codeCache.cpp
! src/share/vm/code/codeCache.hpp
! src/share/vm/gc/shenandoah/shenandoahRootProcessor.cpp
! src/share/vm/gc/shenandoah/shenandoahRootProcessor.hpp