hg: jdk/sandbox: 8243503: InstanceKlass::_array_name is not needed and leaks

[chris.hegarty at oracle.com]

Changeset: 3d35a8d9294f
Author:    coleenp
Date:      2020-04-24 16:54 -0400
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/3d35a8d9294f

8243503: InstanceKlass::_array_name is not needed and leaks
Summary: decrement the refcount for all Klass in class unloading.
Reviewed-by: lfoltan, hseigel

! src/hotspot/share/classfile/classLoaderData.cpp
! src/hotspot/share/oops/instanceKlass.cpp
! src/hotspot/share/oops/instanceKlass.hpp
! src/hotspot/share/oops/klass.cpp
! src/hotspot/share/oops/klass.hpp
! src/hotspot/share/oops/objArrayKlass.cpp