RFR: 8340173: Open source some Component/Panel/EventQueue tests - Set2 [v2]

[Damon Nguyen]

> Following tests are added as part of this PR:
> 
> 1. /java/awt/LightweightComponent/MultipleAddNotifyTest/MultipleAddNotifyTest.java - CONVERTED TO AUTO
> 2. /java/awt/LightweightComponent/PopupTest/PopupTest.java - MANUAL
> 3. /java/awt/Panel/PanelRepaint/PanelRepaint.java - MANUAL
> 4. /java/awt/EventQueue/PushPopDeadlock/PushPopDeadlock.java MANUAL (PROBLEM LISTED)

Damon Nguyen has updated the pull request incrementally with one additional commit since the last revision:

  Review comments

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Changes:
  - all: https://git.openjdk.org/jdk/pull/21398/files
  - new: https://git.openjdk.org/jdk/pull/21398/files/6aee74b4..744b2357

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21398&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21398&range=00-01

  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/21398.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21398/head:pull/21398

PR: https://git.openjdk.org/jdk/pull/21398