thread.c: compare_by_id
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44034 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
thread.c: compare_by_id
the elements by id.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44034 b2dd03c8-39d4-4d8f-98ff-823fe69b080e