fails:Module#class_variable_get returns the value of the class variable with the given name
fails:Module#class_variable_get returns class variables defined in the metaclass and accessed by class methods
fails:Module#class_variable_get returns class variables defined in the metaclass and accessed by instance methods
fails:Module#class_variable_get returns a class variable defined in a metaclass
fails:Module#class_variable_get converts a non string/symbol/fixnum name to string using to_str
fails:Module#class_variable_get raises a TypeError when the given names can't be converted to strings using to_str
