This PR enables several previously disabled test cases for Wayland, as the required fixes are already in the promoted build. ([JDK-8335469](https://bugs.openjdk.org/browse/JDK-8335469), [JDK-8335468](https://bugs.openjdk.org/browse/JDK-8335468))
------------- Commit messages: - check JDK version - 8335470: [XWayland] JavaFX tests that use AWT Robot fail on Wayland Changes: https://git.openjdk.org/jfx/pull/1661/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1661&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8335470 Stats: 22 lines in 3 files changed: 13 ins; 8 del; 1 mod Patch: https://git.openjdk.org/jfx/pull/1661.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/1661/head:pull/1661 PR: https://git.openjdk.org/jfx/pull/1661
