RFR: 8251241: macOS: iconify property doesn't change after minimize when resizable is false [v3]

[Florian Kirmaier]

> ticket: https://bugs.openjdk.java.net/browse/JDK-8251241
> 
> This small change fixing the minimize for mac.
> Changes are property registered.
> Calling setIconize(true) no longer resets to false.

Florian Kirmaier has updated the pull request incrementally with one additional commit since the last revision:

  8251241
  applied tests from kevinrushforth

-------------

Changes:
  - all: https://git.openjdk.java.net/jfx/pull/280/files
  - new: https://git.openjdk.java.net/jfx/pull/280/files/1f42cebe..7c9584f3

Webrevs:
 - full: https://webrevs.openjdk.java.net/jfx/280/webrev.02
 - incr: https://webrevs.openjdk.java.net/jfx/280/webrev.01-02

  Stats: 28 lines in 1 file changed: 25 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jfx/pull/280.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/280/head:pull/280

PR: https://git.openjdk.java.net/jfx/pull/280