7041595: 4/4 add lost test for 6487638
Summary: Add missing LoggingDeadlock3.java and LoggingDeadlock3.props
Reviewed-by: dsamersoff, never, acorn, mchung
7016208: 4/3 null sometimes returned by java.util.logging.Logger.getLogger(String name) in -server -Xcomp
Summary: Logger can be GC'ed between LogManager.addLogger() and LogManager.getLogger()
Reviewed-by: dsamersoff, never, acorn, mchung