RFR: 8341148: Open source several Choice related tests

[Alexander Zuev]

Clean up and open source five tests related to the AWT Choice component

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Commit messages:
 - 8341148: Open source several Choice related tests

Changes: https://git.openjdk.org/jdk/pull/21318/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21318&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8341148
  Stats: 398 lines in 5 files changed: 398 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21318.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21318/head:pull/21318

PR: https://git.openjdk.org/jdk/pull/21318