RFR: 8354472: Clean up and open source KeyEvent related tests (Part 3) [v2]

[Alexander Zuev]

> Clean up and publish five more KeyEvent related tests.

Alexander Zuev has updated the pull request incrementally with two additional commits since the last revision:

 - Update test/jdk/java/awt/event/KeyEvent/CharUndefinedTest.java
   
   Co-authored-by: Harshitha Onkar <harshitha.onkar at oracle.com>
 - Update test/jdk/java/awt/event/KeyEvent/CharUndefinedTest.java
   
   Co-authored-by: Harshitha Onkar <harshitha.onkar at oracle.com>

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/24764/files
  - new: https://git.openjdk.org/jdk/pull/24764/files/d3dda1c5..a26a22e9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24764&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24764&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/24764.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24764/head:pull/24764

PR: https://git.openjdk.org/jdk/pull/24764