RFR: 8306682: Open source a few more AWT Choice tests

[Phil Race]

Open source a few more AWT Choice tests

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Commit messages:
 - 8306682

Changes: https://git.openjdk.org/jdk/pull/13622/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13622&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8306682
  Stats: 535 lines in 4 files changed: 535 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/13622.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13622/head:pull/13622

PR: https://git.openjdk.org/jdk/pull/13622