random.c, rational.c: make marshal methods private
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38157 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
random.c, rational.c: make marshal methods private
methods private. [Feature #6539]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38157 b2dd03c8-39d4-4d8f-98ff-823fe69b080e