RFR: Several cleanups

Sat Sep 1 08:08:00 UTC 2018

On 08/31/2018 11:30 PM, Roman Kennke wrote:
> I went over the diff between shenandoah/jdk and jdk/jdk and found some
> obvious leftovers:
> 
> http://cr.openjdk.java.net/~rkennke/cleanups/webrev.00/

Looks good, except the bit in oop.cpp: are we actually safe doing HeapAccess (with barriers) for
metadata? This came from the attempt to dodge barriers during oop_oop_iterate:
  http://hg.openjdk.java.net/shenandoah/jdk/rev/fd9d711bcc6d

-Aleksey