<AWT Dev> [9] Review Request: 8141553 JDK fails to build with Xcode 7 on 10.11

[David DeHaven]

> Please review one more iteration of the fix of warnings in awt on osx.
> The fix was contributed by Chris Bensen.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8141553
> Webrev can be found at: http://cr.openjdk.java.net/~serb/8141553/webrev.00

Thanks for doing this! I'm not a (R)eviewer, but I've been using these changes for some time now with no ill effects.

-DrD-