RFR: 8316389: Open source few AWT applet tests [v3]

[Alexander Zvegintsev]

> Open sourcing few tests:
> 
> java/awt/Frame/FrameRepackTest.java
> java/awt/Frame/FrameResizeTest/FrameResizeTest_1.java
> java/awt/Frame/FrameResizeTest/FrameResizeTest_2.java
> java/awt/Frame/WindowMoveTest.java

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

 - fix imports
 - new line

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/15787/files
  - new: https://git.openjdk.org/jdk/pull/15787/files/a3fa4954..edf8f551

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15787&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15787&range=01-02

  Stats: 14 lines in 4 files changed: 2 ins; 10 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/15787.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15787/head:pull/15787

PR: https://git.openjdk.org/jdk/pull/15787