[jdk17u-dev] RFR: 8306466: Open source more AWT Drag & Drop related tests

[Victor Rudometov]

Backport for https://bugs.openjdk.org/browse/JDK-8306466 Open source more AWT Drag & Drop related tests
https://github.com/openjdk/jdk/commit/418a82551a2c58e43963beb5aa242a58bbd30e2f

clean backport, new tests
checked on macOS, linux x64

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Commit messages:
 - Backport 418a82551a2c58e43963beb5aa242a58bbd30e2f

Changes: https://git.openjdk.org/jdk17u-dev/pull/1348/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1348&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8306466
  Stats: 848 lines in 8 files changed: 848 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1348.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1348/head:pull/1348

PR: https://git.openjdk.org/jdk17u-dev/pull/1348