[jdk21u-dev] RFR: 8312416: Tests in Locale should have more descriptive names

[Goetz Lindenmaier]

I backport this for parity with 21.0.3-oracle.

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Commit messages:
 - Backport a9a3463afb33b9df4cbf64d1866255bff638824f

Changes: https://git.openjdk.org/jdk21u-dev/pull/197/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=197&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8312416
  Stats: 265 lines in 16 files changed: 93 ins; 138 del; 34 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/197.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/197/head:pull/197

PR: https://git.openjdk.org/jdk21u-dev/pull/197