Per bug 1061481 comment 21, add test to ensure BluetootPairingEvent constructor w/o members throws in pairing marionette test. BluetoothPairingEvent constructor should throw when applications call |new BluetoothPairingEvent()| without members since they are "required" (i.e., cannot be null).
Jamin, please help on this bug when you are available. Thanks.
Resolve as WONTFIX since Firefox OS is discontinued.