* numeric.c ( num_numerator, num_denominator): use to_r [ruby-core:23910].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@23799 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merges r23733 from trunk into ruby_1_9_1.¶
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@23799 b2dd03c8-39d4-4d8f-98ff-823fe69b080e