hg: shenandoah/jdk10/hotspot: Fixed assertion failures when printing heap region to trace output

[zgu at redhat.com]

Changeset: e3c300fc9286
Author:    zgu
Date:      2017-08-10 07:44 -0400
URL:       http://hg.openjdk.java.net/shenandoah/jdk10/hotspot/rev/e3c300fc9286

Fixed assertion failures when printing heap region to trace output

! src/share/vm/gc/shenandoah/shenandoahHeap.cpp
+ test/gc/shenandoah/TestShenandoahWithLogLevel.java