rational.c: optimize rational + integer.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56705 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
rational.c: optimize rational + integer.
Author: Tadashi Saito [email protected]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56705 b2dd03c8-39d4-4d8f-98ff-823fe69b080e