hg: jdk9/hs-rt/hotspot: 8150419: Cleanup BufferNode API

[kim.barrett at oracle.com]

Changeset: 422d373c4e3f
Author:    kbarrett
Date:      2016-02-24 13:18 -0500
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/422d373c4e3f

8150419: Cleanup BufferNode API
Summary: Fewer public functions, cleanup allocation.
Reviewed-by: tschatzl, drwhite

! src/share/vm/gc/g1/ptrQueue.cpp
! src/share/vm/gc/g1/ptrQueue.hpp