<i18n dev> RFR: 8346117: added @test annotations

[Ivan Šipka]

@mahendrachhipa @bwhuang-us @serhiysachkov

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Commit messages:
 - added @test annotations

Changes: https://git.openjdk.org/jdk/pull/22717/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22717&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8346117
  Stats: 2 lines in 2 files changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/22717.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22717/head:pull/22717

PR: https://git.openjdk.org/jdk/pull/22717