hg: jdk8u/jdk8u-dev/hotspot: 8258079: Eliminate ParNew's use of klass_or_null()

[felix.yang at huawei.com]

Changeset: db3b97029d3d
Author:    kbarrett
Date:      2016-09-19 13:12 -0400
URL:       https://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/db3b97029d3d

8258079: Eliminate ParNew's use of klass_or_null()
Summary: Use list_ptr_from_klass instead of klass_or_null.
Reviewed-by: mgerdin, jmasa

! src/share/vm/gc_implementation/parNew/parNewGeneration.cpp