RFR: 8346886: Add since checker test to jdk.management.jfr

[Erik Gahlin]

On Tue, 3 Jun 2025 10:08:37 GMT, Nizar Benalla <nbenalla at openjdk.org> wrote:

> Please review this patch to add a new test to check `@since` tags in the `jdk.management.jfr` module.
> 
> TIA

Looks reasonable.

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Marked as reviewed by egahlin (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25612#pullrequestreview-2935443583