[jdk11u-dev] RFR: 8306652: Open source AWT MenuItem related tests

[Andrew Lu]

I backport this for parity with 11.0.23-oracle.

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Commit messages:
 - Backport ed1ebd242a4bb82a7074564ea96dc3d26b78f9e1

Changes: https://git.openjdk.org/jdk11u-dev/pull/2446/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2446&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8306652
  Stats: 326 lines in 4 files changed: 326 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2446.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2446/head:pull/2446

PR: https://git.openjdk.org/jdk11u-dev/pull/2446