RFR: 8315131: Clarify VarHandle set/get access on 32-bit platforms [v2]

[Chen Liang]

On Fri, 11 Jul 2025 13:17:04 GMT, Chen Liang <liach at openjdk.org> wrote:

>> Right, "word tearing" and "non-atomic access" are different notions.
>
> True, word tearing is racing a single memory location. Good that we discovered another spec bug and could fix it in time for 25.

I have changed to use the correct term "atomic". Let me know how this revision looks.

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PR Review Comment: https://git.openjdk.org/jdk/pull/26258#discussion_r2200897313