When binding the promptTextProperty of a TextInputControl (TextField or
TextArea) to a text that contains linebreaks/newlines ("\n") the "bind" call
causes a RuntimeException to be thrown, the solution to it is to unbind before
calling the set(txt) method to set the new value for the property.
Also added tests to test this new fix
-------------
Commit messages:
- Fixed TextInputControl binding prompt with linebreaks and added tests
Changes: https://git.openjdk.org/jfx/pull/1694/files
Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1694&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8335587
Stats: 42 lines in 2 files changed: 37 ins; 5 del; 0 mod
Patch: https://git.openjdk.org/jfx/pull/1694.diff
Fetch: git fetch https://git.openjdk.org/jfx.git pull/1694/head:pull/1694
PR: https://git.openjdk.org/jfx/pull/1694
