file.c: get rid of useless conversion
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62606 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
file.c: get rid of useless conversion
object as trying conversion to path name string first. skip
conversion to IO and try stat(2) only.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62606 b2dd03c8-39d4-4d8f-98ff-823fe69b080e