numeric.c: predefined constants

* numeric.c (id_eq, id_cmp): use predefined constants in id.h.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45217 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-03-01

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45218 b2dd03c8-39d4-4d8f-98ff-823fe69b080e