testing/clock: Add afterfunc support
testing/clock: Add afterfunc support

frankban/juju,axw/juju,waigani/juju,alesstimec/juju,mikemccracken/juju,makyo/juju,marcmolla/juju,waigani/juju,frankban/juju,frankban/juju,kat-co/juju,macgreagoir/juju,mikemccracken/juju,bac/juju,dimitern/juju,alesstimec/juju,mjs/juju,gabriel-samfira/juju,bogdanteleaga/juju,AdamIsrael/juju,perrito666/juju,gabriel-samfira/juju,bac/juju,bogdanteleaga/juju,macgreagoir/juju,AdamIsrael/juju,bac/juju,gabriel-samfira/juju,wwitzel3/juju,bz2/juju,ericsnowcurrently/juju,voidspace/juju,AdamIsrael/juju,ericsnowcurrently/juju,dooferlad/juju,mjs/juju,frankban/juju,bogdanteleaga/juju,kat-co/juju,mikemccracken/juju,reedobrien/juju,axw/juju,mikemccracken/juju,axw/juju,wwitzel3/juju,howbazaar/juju,ericsnowcurrently/juju,fwereade/juju,mjs/juju,voidspace/juju,dimitern/juju,mjs/juju,dimitern/juju,dooferlad/juju,bz2/juju,reedobrien/juju,alesstimec/juju,waigani/juju,anastasiamac/juju,voidspace/juju,marcmolla/juju,davecheney/juju,makyo/juju,axw/juju,dimitern/juju,perrito666/juju,mjs/juju,ericsnowcurrently/juju,macgreagoir/juju,dooferlad/juju,kat-co/juju,wwitzel3/juju,bac/juju,makyo/juju,mjs/juju,dooferlad/juju,perrito666/juju,marcmolla/juju,kat-co/juju,waigani/juju,perrito666/juju,gabriel-samfira/juju,reedobrien/juju,anastasiamac/juju,kat-co/juju,AdamIsrael/juju,reedobrien/juju,marcmolla/juju,alesstimec/juju,wwitzel3/juju,makyo/juju,davecheney/juju,howbazaar/juju,macgreagoir/juju,ericsnowcurrently/juju,dooferlad/juju,fwereade/juju,bac/juju,howbazaar/juju,howbazaar/juju,bz2/juju,mjs/juju,bz2/juju,anastasiamac/juju,mikemccracken/juju,anastasiamac/juju,anastasiamac/juju,davecheney/juju,gabriel-samfira/juju,voidspace/juju,bogdanteleaga/juju,axw/juju,perrito666/juju,reedobrien/juju,marcmolla/juju,fwereade/juju,macgreagoir/juju,howbazaar/juju,frankban/juju,davecheney/juju,dimitern/juju,fwereade/juju,alesstimec/juju,bz2/juju