git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8772 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
no block is given. * enumerator.c: moved from ext/enumerator. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8764 b2dd03c8-39d4-4d8f-98ff-823fe69b080e