RFR: 8306134: Open source some AWT tests relating to Button and a few other classes

[Alexander Zvegintsev]

On Tue, 18 Apr 2023 21:22:23 GMT, Phil Race <prr at openjdk.org> wrote:

> This open sources a few simple AWT jtreg tests that are overdue to be opened.

Marked as reviewed by azvegint (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/13520#pullrequestreview-1391734564