Symbol refinements
From: osyo (manga osyo) manga.osyo@gmail.com
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66151 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Symbol refinements
refinements in Symbol#to_proc. [Bug #15114]
From: osyo (manga osyo) manga.osyo@gmail.com
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66151 b2dd03c8-39d4-4d8f-98ff-823fe69b080e