RFR (M): 8184334: Generalizing Atomic with templates

[Kim Barrett]

> On Aug 6, 2017, at 7:32 PM, Kim Barrett <kim.barrett at oracle.com> wrote:
> 
> Here is a start at addressing the various comments.  I still owe email
> responses to some comments, but wanted to get this out first.
> 
> http://cr.openjdk.java.net/~kbarrett/cmpxchg_template_20170806/webrev/

I made an "improvement" in the handling of translated types today, but
it turned out to just make things more complicated.  I've backed it
out and updated the webrev in-place.

This simplification is neither expected nor intended to address
David's complaints about how templates are used in this code.