RFR: 8367014: Rename class Atomic to AtomicAccess [v3]

[Kim Barrett]

> Please review this change that renames the all-static class `Atomic` to
> `AtomicAccess`. The reason for this name change is to allow the introduction
> of the new type `Atomic<T>` ([JDK-8367013](https://bugs.openjdk.org/browse/JDK-8367013)).
> 
> The PR has several commits, according to the specific category of change being
> made. It may be easier to review the PR by studying these individual commits.
> 
> Although the file "atomic.hpp" is being renamed to "atomicAccess.hpp", I chose
> to not rename the various "atomic_<cpu>.*" and "atomic_<os>_<cpu>.*" files.
> 
> There are a number of comments containing the word "Atomic" that I didn't
> change. They are generically about atomic operations, and will just as well
> serve as referring to the future `Atomic<T>`.
> 
> Testing: mach5 tier1, GHA sanity tests.
> This is one of those changes where successful builds indicate the change is good.

Kim Barrett has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 13 commits:

 - Merge branch 'master' into atomic-access
 - rename recently added Atomic:: => AtomicAccess::
 - Merge branch 'master' into atomic-access
 - fix prefiously missed arg misalignments
 - rename test_atomic.cpp
 - update copyrights
 - misc cleanups
 - fix indentation from rename
 - rename Atomic => AtomicAccess in gtests
 - rename Atomic => AtomicAccess
 - ... and 3 more: https://git.openjdk.org/jdk/compare/134c3ef4...00ecd55c

-------------

Changes: https://git.openjdk.org/jdk/pull/27135/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27135&range=02
  Stats: 5577 lines in 430 files changed: 1587 ins; 1585 del; 2405 mod
  Patch: https://git.openjdk.org/jdk/pull/27135.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27135/head:pull/27135

PR: https://git.openjdk.org/jdk/pull/27135