Open Radar

 
Summary:
Currently if you pass `NSEventMask.AnyEventMask` to `NSEvent.addGlobalMonitorForEventsMatchingMask`, the callback is never fired.

Steps to Reproduce:
1) Register a global event monitor with `NSEvent.addGlobalMonitorForEventsMatchingMask(.AnyEventMask) { print($0) }

Expected Results:
`print` is fired when every single event in the system, meaning mouse moves, and keyboard events

Actual Results:
The callback is never fired.

Version:
OS X 10.11.5

Notes:
You can work around this by assigning an event mask defined as:

```
NSEventMask(rawValue: 0xfffffffffffffff)
```

Instead. Here's some sample code that shows this issue (uncomment as necessary):

```
import AppKit

// This one works
let mask = NSEventMask(rawValue: 0xfffffffffffffff)

// This one does not
// let mask = NSEventMask.AnyEventMask

NSEvent.addGlobalMonitorForEventsMatchingMask(mask) { event in
    print(event)
}

let application = NSApplication.sharedApplication()
application.run()
```