hg: shenandoah/jdk9/hotspot: Final update refs roots are acting like Full GC

[ashipile at redhat.com]

Changeset: 08ec6e434c20
Author:    shade
Date:      2017-06-29 21:26 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/08ec6e434c20

Final update refs roots are acting like Full GC

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