Cleaned up and stabilized four Dialog-related tests. -------------
Commit messages: - 8306575: Clean up and open source four Dialog related tests Changes: https://git.openjdk.org/jdk/pull/13592/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13592&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8306575 Stats: 585 lines in 4 files changed: 585 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/13592.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/13592/head:pull/13592 PR: https://git.openjdk.org/jdk/pull/13592
