Clean backport. This only touches the macos platform, build and basic tests work fine.
------------- Commit messages: - 8258381: [macos] Exception when input emoji using Chinese input method Changes: https://git.openjdk.java.net/jfx11u/pull/15/files Webrev: https://webrevs.openjdk.java.net/?repo=jfx11u&pr=15&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8258381 Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod Patch: https://git.openjdk.java.net/jfx11u/pull/15.diff Fetch: git fetch https://git.openjdk.java.net/jfx11u pull/15/head:pull/15 PR: https://git.openjdk.java.net/jfx11u/pull/15
