RFR: 8340366: Open source several AWT Dialog tests - Batch 3

[Tejesh R]

Open source these AWT Dialog tests:

java/awt/Dialog/ModalDialogTest.java
java/awt/Dialog/DialogModalityTest.java
java/awt/Dialog/DialogResizeTest2.java
java/awt/Dialog/HideDialogTest.java
java/awt/Dialog/FileDialogUserFilterTest.java

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Commit messages:
 - Update ProblemList
 - Open Source

Changes: https://git.openjdk.org/jdk/pull/21218/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21218&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340366
  Stats: 656 lines in 6 files changed: 656 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21218.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21218/head:pull/21218

PR: https://git.openjdk.org/jdk/pull/21218