[jdk21u-dev] RFR: 8317116: Provide layouts for multiple test UI in PassFailJFrame

[Goetz Lindenmaier]

I backport this for parity with 21.0.6-oracle.

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Commit messages:
 - Backport 85f0442727201e0d36ed0a71d2199e602501c98d

Changes: https://git.openjdk.org/jdk21u-dev/pull/1114/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1114&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8317116
  Stats: 319 lines in 2 files changed: 315 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1114.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1114/head:pull/1114

PR: https://git.openjdk.org/jdk21u-dev/pull/1114