RFR: 8354248: Open source several AWT GridBagLayout and List tests [v3]

[Tejesh R]

> Open source these AWT GridBagLayout and List tests:
> 
> java/awt/GridBagLayout/ComponentShortage/ComponentShortage.java
> java/awt/List/ListScrollbarCursorTest/ListScrollbarCursorTest.java
> java/awt/List/ListScrollbarTest/ListScrollbarTest.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/24749/files
  - new: https://git.openjdk.org/jdk/pull/24749/files/93e1f0ec..17bc5b0c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24749&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24749&range=01-02

  Stats: 4 lines in 1 file changed: 4 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24749.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24749/head:pull/24749

PR: https://git.openjdk.org/jdk/pull/24749