fails:Module#class_variable_set sets the class variable with the given name to the given value
fails:Module#class_variable_set sets a class variable on a metaclass
fails:Module#class_variable_set sets the value of a class variable with the given name defined in an included module
fails:Module#class_variable_set raises a RuntimeError when self is frozen
fails:Module#class_variable_set converts a non string/symbol/fixnum name to string using to_str
fails:Module#class_variable_set raises a TypeError when the given names can't be converted to strings using to_str
