fails:Module#private is a private method
fails:Module#private makes a public Object instance method private in a new module
fails:Module#private makes a public Object instance method private in Kernel
fails:Module#private returns self
fails:Module#private raises a NameError when given an undefined name
fails:Module#private without arguments sets visibility to following method definitions
fails:Module#private without arguments stops setting visibility if the body encounters other visibility setters without arguments
fails:Module#private without arguments continues setting visibility if the body encounters other visibility setters with arguments
fails:Module#private without arguments does not affect module_evaled method definitions when itself is outside the eval
fails:Module#private without arguments does not affect outside method definitions when itself is inside a module_eval
fails:Module#private without arguments affects normally if itself and method definitions are inside a module_eval
fails:Module#private without arguments does not affect method definitions when itself is inside an eval and method definitions are outside
fails:Module#private without arguments affects evaled method definitions when itself is outside the eval
fails:Module#private without arguments affects normally if itself and following method definitions are inside a eval
