RFR: 8352865: Open source several AWT TextComponent tests - Batch 2 [v2]

[Tejesh R]

> Open source these AWT TextComponent tests:
> 
> java/awt/TextComponent/SelectionAndCaretColor/SelectionAndCaretColor.java
> java/awt/TextComponent/SelectionTest/SelectionTest.java
> java/awt/TextComponent/CorrectTextComponentSelectionTest/CorrectTextComponentSelectionTest.java
> java/awt/TextComponent/AltPlusNumberKeyCombinationsTest/AltPlusNumberKeyCombinationsTest.java

Tejesh R has updated the pull request incrementally with one additional commit since the last revision:

  Updated review comments

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24477/files
  - new: https://git.openjdk.org/jdk/pull/24477/files/4a35b8c1..f2262cfa

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24477&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24477&range=00-01

  Stats: 11 lines in 2 files changed: 5 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/24477.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24477/head:pull/24477

PR: https://git.openjdk.org/jdk/pull/24477