Ruby

merge revision(s) 49480,49493: [Backport #10765]

    * vm_method.c (remove_method): When remove refined
      method, raise a NameError if the method is not
      defined in refined class.

      But if the method is defined in refined class,
      it should keep refined method and remove original
      method.

      Patch by Seiei Higa. [ruby-core:67722] [Bug #10765]

    * class.c (method_entry_i, class_instance_method_list,
      rb_obj_singleton_methods): should not include methods of
      superclasses if recur is false. [ruby-dev:48854] [Bug #10826]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@49647 b2dd03c8-39d4-4d8f-98ff-823fe69b080e