RFR: 8339794: Open source closed choice tests #1

[Alexander Zvegintsev]

Few more tests open sourcing.

Testing is green.

-------------

Commit messages:
 - 8339794: Open source closed choice tests #1

Changes: https://git.openjdk.org/jdk/pull/20941/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20941&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8339794
  Stats: 383 lines in 3 files changed: 383 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/20941.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20941/head:pull/20941

PR: https://git.openjdk.org/jdk/pull/20941