RFR: 8367796: Rename AtomicAccess gtests

[Kim Barrett]

On Wed, 17 Sep 2025 08:38:32 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Please review this trivial renaming change. AtomicAccess gtest names and
>> supporting classes are being renamed to use "AtomicAccess" nomenclature,
>> rather than just "Atomic". (The potential for ODR violations could have been
>> eliminated by instead using anonymous namespaces, but use of those is still
>> not permitted in HotSpot.)
>> 
>> Testing: mach5 tier1
>
> Marked as reviewed by ayang (Reviewer).

Thanks for reviews @albertnetymk and @tschatzl

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PR Comment: https://git.openjdk.org/jdk/pull/27330#issuecomment-3304444622