restore_original_method (Mocha::ClassMethod)

        # File lib/mocha/class_method.rb, line 51
    51:     def restore_original_method
    52:       if method_exists?(hidden_method)
    53:         begin
    54:           stubbee.__metaclass__.send(:alias_method, method, hidden_method)
    55:           stubbee.__metaclass__.send(:remove_method, hidden_method)
    56:         rescue NameError
    57:           # deal with nasties like ActiveRecord::Associations::AssociationProxy
    58:         end
    59:       end
    60:     end