hg: shenandoah/jdk9/hotspot: Throw proper OOMEs instead of crashing on internal asserts.

[ashipile at redhat.com]

Changeset: bb1e9843dd00
Author:    shade
Date:      2016-09-30 16:35 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/bb1e9843dd00

Throw proper OOMEs instead of crashing on internal asserts.
Contributed-by: Zhengyu Gu <zgu at redhat.com>

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