* class.c (rb_mod_ancestors): Include singleton_class in ancestors list
  [Feature #8035]

* test/ruby/test_module.rb (class): test for above

* test/ruby/marshaltestlib.rb (module): adapt test

* NEWS: list change

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39628 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-03-08

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39629 b2dd03c8-39d4-4d8f-98ff-823fe69b080e