hg: shenandoah/jdk9/hotspot: Parallelize partial GC cleanup.

[ashipile at redhat.com]

Changeset: 25c23c6cb221
Author:    shade
Date:      2017-05-03 17:15 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/25c23c6cb221

Parallelize partial GC cleanup.

! src/share/vm/gc/shenandoah/shenandoahHeapRegion.cpp
! src/share/vm/gc/shenandoah/shenandoahPartialGC.cpp