enc/unicode: check Unicode versions
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55687 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
enc/unicode: check Unicode versions
Unicode versions are consistent with each other.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55687 b2dd03c8-39d4-4d8f-98ff-823fe69b080e