hg: shenandoah/jdk9/hotspot: Enable -XX:+HeapDump{Before|After}FullGC.

[ashipile at redhat.com]

Changeset: 6f8831470752
Author:    shade
Date:      2016-12-12 18:26 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/6f8831470752

Enable -XX:+HeapDump{Before|After}FullGC.

! src/share/vm/gc/shenandoah/shenandoahCollectorPolicy.cpp
! src/share/vm/gc/shenandoah/shenandoahCollectorPolicy.hpp
! src/share/vm/gc/shenandoah/shenandoahMarkCompact.cpp