RFR: 8340639: Open source few more AWT List tests

[Prasanta Sadhukhan]

Opensource few more AWT List tests

-------------

Commit messages:
 - 8340639: Open source few more AWT List tests
 - 8340639: Open source few more AWT List tests

Changes: https://git.openjdk.org/jdk/pull/21205/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21205&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340639
  Stats: 388 lines in 4 files changed: 388 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21205.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21205/head:pull/21205

PR: https://git.openjdk.org/jdk/pull/21205