Heap verification fails after recent merge

[Roman Kennke]

Am Donnerstag, den 15.09.2016, 07:33 +0200 schrieb Aleksey Shipilev:
> Thanks! Does not help me much though, because my new CAS code _can_
> corrupt the heap, and I want some verification :)

Hi Alexey,
I pushed a fix yesterday. It should now pass the verify-before-exit,
and if you like you can turn on extra validation during each GC cycle
by -XX:+ShenandoahVerify (it will verify heap consistency before
marking, between marking and evacuation, during evacuation and after
evacuation).

Cheers,
Roman