This PR open sources few AWT DnD related tests -------------
Commit messages: - Open source few DnD AWT tests Changes: https://git.openjdk.org/jdk/pull/13591/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13591&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8306133 Stats: 1064 lines in 5 files changed: 1064 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/13591.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/13591/head:pull/13591 PR: https://git.openjdk.org/jdk/pull/13591
