git: openjdk/jdk: 8306955: Open source several JComboBox jtreg tests

[Phil Race]

Changeset: 1f689241
Author:    Phil Race <prr at openjdk.org>
Date:      2023-04-28 22:42:11 +0000
URL:       https://git.openjdk.org/jdk/commit/1f689241cfcb4083cba283a2010b532948865283

8306955: Open source several JComboBox jtreg tests

Reviewed-by: kizune

+ test/jdk/javax/swing/JComboBox/bug4167850.java
+ test/jdk/javax/swing/JComboBox/bug4209474.java
+ test/jdk/javax/swing/JComboBox/bug4234119.java
+ test/jdk/javax/swing/JComboBox/bug4890345.java
+ test/jdk/javax/swing/JComboBox/bug4996503.java