make ES6.Classes loose (#4864)
make ES6.Classes loose (#4864)

* makes profiling easier (methods are not called value)
* appears to be a slight performance improvement (although not the motivator)
arenoir/data,rtablada/data,arenoir/data,swarmbox/data,workmanw/data,davidpett/data,davidpett/data,rtablada/data,arenoir/data,workmanw/data,rtablada/data,HeroicEric/data,swarmbox/data,swarmbox/data,workmanw/data,davidpett/data,arenoir/data,HeroicEric/data,workmanw/data,HeroicEric/data,HeroicEric/data,rtablada/data,davidpett/data,swarmbox/data