RFR: 8340851: Open some TextArea awt tests

[Alisen Chung]

sixth set of tests to open for fall 2024 test sprint

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Commit messages:
 - open tests

Changes: https://git.openjdk.org/jdk/pull/21434/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21434&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340851
  Stats: 357 lines in 4 files changed: 357 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21434.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21434/head:pull/21434

PR: https://git.openjdk.org/jdk/pull/21434