RFR: 8316371: Open some swing tests 6

[Alisen Chung]

Opening some closed tests:
20 javax/swing/plaf/windows/4736093/bug4736093.java
21 javax/swing/table/DefaultTableCellRenderer/4240870/bug4240870.java
22 javax/swing/table/JTableHeader/4243927/bug4243927.java
23 javax/swing/text/AbstractDocument/4549069/bug4549069.java
24 javax/swing/text/AbstractWriter/4185537/bug4185537.java

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Commit messages:
 - moved tests to open

Changes: https://git.openjdk.org/jdk/pull/15873/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15873&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8316371
  Stats: 574 lines in 5 files changed: 574 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/15873.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15873/head:pull/15873

PR: https://git.openjdk.org/jdk/pull/15873