RFR: 8353589: Open source a few Swing menu-related tests [v2]

[Jayathirth D V]

On Mon, 7 Apr 2025 16:41:37 GMT, Phil Race <prr at openjdk.org> wrote:

>> Open source a few tests related to Swing menus.
>
> Phil Race has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8353589

LGTM.
Also tested them on my macOS machine.

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Marked as reviewed by jdv (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/24457#pullrequestreview-2768052632