RFR: 8354561: Open source several swing tests batch0

[Prasanta Sadhukhan]

On Wed, 16 Apr 2025 10:09:48 GMT, Alexander Zvegintsev <azvegint at openjdk.org> wrote:

> Few more tests open sourced:
> 
> javax/swing/JTextArea/4474400/bug4474400.java
> javax/swing/border/TitledBorder/TransparentTitleTest.java
> javax/swing/JComboBox/4139900/bug4139900.java
> javax/swing/JComboBox/4174876/bug4174876.java

Marked as reviewed by psadhukhan (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/24680#pullrequestreview-2772402966