RFR: 8316104: Open source several Swing SplitPane and RadioButton related tests

[Alexander Zuev]

On Thu, 14 Sep 2023 09:33:03 GMT, Tejesh R <tr at openjdk.org> wrote:

> Open sourcing these Swing SplitPane and RadioButton related tests:
> 
> javax/swing/JSplitPane/4147653/bug4147653.java
> javax/swing/JSplitPane/4870674/bug4870674.java
> javax/swing/JRadioButton/4823809/bug4823809.java

Looks fine

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Marked as reviewed by kizune (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/15738#pullrequestreview-1627223012