test_message: Fix strict-aliasing compilation issue


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/12@420097 f38db490-d61c-443f-a65b-d21fe96a405b
stasis: Fix compilation issue with ao2 tagged objects


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/12@420099 f38db490-d61c-443f-a65b-d21fe96a405b