Add test that covers MockFunctionComparator::ValueToString()
Add test that covers MockFunctionComparator::ValueToString()

basvodde/cpputest,dawid-aurobit/cpputest,PaulBussmann/cpputest,Andne/cpputest,bithium/cpputest,basvodde/cpputest,Mindtribe/cpputest,jaeguly/cpputest,KisImre/cpputest,Andne/cpputest,cpputest/cpputest,PaulBussmann/cpputest,maxilai/cpputest,Andne/cpputest,offa/cpputest,devMichaelJones/cpputest,chenlianbing/cpputest,cpputest/cpputest,asgeroverby/cpputest,Andne/cpputest,Mindtribe/cpputest,PaulBussmann/cpputest,devMichaelJones/cpputest,KisImre/cpputest,jaeguly/cpputest,basvodde/cpputest,KisImre/cpputest,Mindtribe/cpputest,jaeguly/cpputest,arstrube/cpputest,offa/cpputest,devMichaelJones/cpputest,asgeroverby/cpputest,offa/cpputest,maxilai/cpputest,chenlianbing/cpputest,chenlianbing/cpputest,asgeroverby/cpputest,cpputest/cpputest,dawid-aurobit/cpputest,chenlianbing/cpputest,asgeroverby/cpputest,maxilai/cpputest,offa/cpputest,basvodde/cpputest,PaulBussmann/cpputest,bithium/cpputest,KisImre/cpputest,cpputest/cpputest,bithium/cpputest,maxilai/cpputest,arstrube/cpputest,dawid-aurobit/cpputest,dawid-aurobit/cpputest,devMichaelJones/cpputest,bithium/cpputest,Mindtribe/cpputest,arstrube/cpputest,arstrube/cpputest,jaeguly/cpputest