
PASS mozInitMessageEvent on the prototype 
PASS mozInitMessageEvent on the instance 
PASS msInitMessageEvent on the prototype 
PASS msInitMessageEvent on the instance 
PASS oInitMessageEvent on the prototype 
PASS oInitMessageEvent on the instance 
PASS webkitInitMessageEvent on the prototype 
PASS webkitInitMessageEvent on the instance 
PASS initMessageEvent with no arguments