RFR: 8356107: [java.lang] Use @requires tag instead of exiting based on os.name or separatorChar property [v3]

[Brian Burkhalter]

On Mon, 12 May 2025 17:58:29 GMT, Brent Christian <bchristi at openjdk.org> wrote:

>> For `java.lang` tests, use the `@requires` facility in place of checking the `os.name` system property or `File.separatorChar`.
>> 
>> Automated test results are omitted as expected.
>
> Brent Christian has updated the pull request incrementally with one additional commit since the last revision:
> 
>   apostrophize

Looks fine.

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Marked as reviewed by bpb (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25163#pullrequestreview-2834957477