restore_original_method (Mocha::ClassMethod)

        # File lib/mocha/class_method.rb, line 47
    47:     def restore_original_method
    48:       if method_exists?(hidden_method)
    49:         begin
    50:           stubbee.__metaclass__.send(:alias_method, method, hidden_method)
    51:           stubbee.__metaclass__.send(:remove_method, hidden_method)
    52:         rescue NameError
    53:           # deal with nasties like ActiveRecord::Associations::AssociationProxy
    54:         end
    55:       end
    56:     end