hg: shenandoah/jdk9/hotspot: Cast value to jlong, to avoid negative overflow in size_t.

[roman at kennke.org]

Changeset: ea399661e30b
Author:    rkennke
Date:      2016-02-02 14:23 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/ea399661e30b

Cast value to jlong, to avoid negative overflow in size_t.

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