hg: jdk/sandbox: 8209821: Make JVMTI GetClassLoaderClasses not walk CLDG

[chris.hegarty at oracle.com]

Changeset: 1f0b605bdc28
Author:    coleenp
Date:      2018-08-25 11:10 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/1f0b605bdc28

8209821: Make JVMTI GetClassLoaderClasses not walk CLDG
Summary: And also added function with KlassClosure to remove the hacks.
Reviewed-by: lfoltan, sspitsyn

! src/hotspot/share/classfile/classLoaderData.cpp
! src/hotspot/share/classfile/classLoaderData.hpp
! src/hotspot/share/classfile/dictionary.cpp
! src/hotspot/share/classfile/dictionary.hpp
! src/hotspot/share/memory/universe.cpp
! src/hotspot/share/memory/universe.hpp
! src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
! src/hotspot/share/runtime/mutexLocker.cpp
! src/hotspot/share/runtime/thread.cpp
! src/hotspot/share/runtime/thread.hpp