RFR: 8354552: Open source a few Swing tests

[Phil Race]

Open source a few Swing regression tests.

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

Commit messages:
 - 8354552
 - 83545528354552owd

Changes: https://git.openjdk.org/jdk/pull/24668/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24668&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354552
  Stats: 323 lines in 4 files changed: 323 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24668.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24668/head:pull/24668

PR: https://git.openjdk.org/jdk/pull/24668