RFR: 8166651: OrderAccess::load_acquire &etc should have const parameters

[Kim Barrett]

> On May 26, 2017, at 6:37 PM, Kim Barrett <kim.barrett at oracle.com> wrote:
> 
> Looking over the changes again, I realized there was a problem with
> the changes for zero. The added const qualifier to Atomic::load would
> run afoul of a non-const-qualified source for os::atomic_copy64.
> 
> I've updated all three definitions of os::atomic_copy64.  Two were in
> zero-specific files.  One was in os_linux_aarch64.hpp.
> 
> Unfortunately, I wasn't able to test these additional changes, as
> building zero is already broken in jdk10/hs for other reasons
> (JDK-8181158).
> 
> New webrev:
> full: http://cr.openjdk.java.net/~kbarrett/8166651/hotspot.02/
> incr: http://cr.openjdk.java.net/~kbarrett/8166651/hotspot.02.inc/

Waiting for re-reviews for the additional changes.