[jdk21u-dev] RFR: 8315825: Open some swing tests

[Goetz Lindenmaier]

I backport this for parity with 21.0.7-oracle

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Commit messages:
 - Backport e015e6ce28e263e546cd1b6583a4a3ecc431d576

Changes: https://git.openjdk.org/jdk21u-dev/pull/1291/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1291&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315825
  Stats: 449 lines in 4 files changed: 449 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1291.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1291/head:pull/1291

PR: https://git.openjdk.org/jdk21u-dev/pull/1291