RFR: 8315663: Open source misc awt tests

[Prasanta Sadhukhan]

Some closed awt tests are opensourced

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Commit messages:
 - 8315663: Open source misc awt tests

Changes: https://git.openjdk.org/jdk/pull/15634/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15634&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315663
  Stats: 263 lines in 2 files changed: 263 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/15634.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15634/head:pull/15634

PR: https://git.openjdk.org/jdk/pull/15634