RFR: 8354472: Clean up and open source KeyEvent related tests (Part 3)

[Alexander Zuev]

Clean up and publish five more KeyEvent related tests.

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Commit messages:
 - 8354472: Clean up and open source KeyEvent related tests (Part 3)

Changes: https://git.openjdk.org/jdk/pull/24764/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24764&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354472
  Stats: 530 lines in 5 files changed: 530 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24764.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24764/head:pull/24764

PR: https://git.openjdk.org/jdk/pull/24764