hg: shenandoah/jdk10/hotspot: Fix zero build.

[roman at kennke.org]

Changeset: b1c882be7db6
Author:    rkennke
Date:      2017-07-24 16:08 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk10/hotspot/rev/b1c882be7db6

Fix zero build.

! src/share/vm/gc/shenandoah/shenandoahCollectorPolicy.cpp