hg: shenandoah/jdk9/hotspot: Added regression test for humongous off-by-one error.

[roman at kennke.org]

Changeset: 022c887483ea
Author:    rkennke
Date:      2016-09-21 16:43 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/022c887483ea

Added regression test for humongous off-by-one error.
Contributed-by: Zhengyu Gu <zgu at redhat.com>

+ test/gc/shenandoah/HumongousRegionReclaimTest/TestHumongous.java