deprecate Fixnum and Bignum
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56187 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
deprecate Fixnum and Bignum
Fixnum and Bignum. this may be reverted after previews.
[Feature #12739]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56187 b2dd03c8-39d4-4d8f-98ff-823fe69b080e