RFR: 8306135: Clean up and open source some AWT tests

[lawrence.andrews]

On Tue, 18 Apr 2023 18:55:42 GMT, Alexander Zuev <kizune at openjdk.org> wrote:

> Cleaning up and open sourcing three AWT tests

Set to 80-column limit where ever it required.

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PR Comment: https://git.openjdk.org/jdk/pull/13518#issuecomment-1513737817