hg: shenandoah/jdk10: Disallow pinned_cset region moves and allocations during Full GC

[ashipile at redhat.com]

Changeset: b2ba31bfed97
Author:    shade
Date:      2017-11-13 14:37 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk10/rev/b2ba31bfed97

Disallow pinned_cset region moves and allocations during Full GC

! src/hotspot/share/gc/shenandoah/shenandoahHeapRegion.hpp
! src/hotspot/share/gc/shenandoah/shenandoahMarkCompact.cpp