RFR: 8353304: Open source two JTabbedPane tests

[Alexander Zuev]

On Fri, 4 Apr 2025 22:50:28 GMT, Phil Race <prr at openjdk.org> wrote:

> Open source two Swing JTabbedPane tests.
> One is problem listed for macOS because of the way Aqua displays tabs on the left + right.

Looks good.

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Marked as reviewed by kizune (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/24461#pullrequestreview-2745470320