RFR (S) 8231410: Shenandoah: clone barrier should use base pointer

[Aleksey Shipilev]

On 9/25/19 1:53 PM, Roman Kennke wrote:
> I'd suggest passing the interior ptrs and length too, and copy only the payload (avoids touching the
> src-size and src/dst headers):
> 
> http://cr.openjdk.java.net/~rkennke/JDK-8231410/webrev.03/

Ok, fine. I don't see the fault in touching oop->size(), but whatever.

Please match argument names in declaration and definition of clone_barrier. Also, stray printing.

-- 
Thanks,
-Aleksey