port autovivification fix to &unshift, JimmyZ++
port autovivification fix to &unshift, JimmyZ++

salortiz/rakudo,labster/rakudo,MasterDuke17/rakudo,labster/rakudo,zhuomingliang/rakudo,lucasbuchala/rakudo,tbrowder/rakudo,b2gills/rakudo,ab5tract/rakudo,Leont/rakudo,tony-o/deb-rakudodaily,softmoth/rakudo,dankogai/rakudo,b2gills/rakudo,LLFourn/rakudo,tbrowder/rakudo,teodozjan/rakudo,dankogai/rakudo,zhuomingliang/rakudo,pmurias/rakudo,ungrim97/rakudo,awwaiid/rakudo,azawawi/rakudo,labster/rakudo,labster/rakudo,nbrown/rakudo,laben/rakudo,cognominal/rakudo,ungrim97/rakudo,Gnouc/rakudo,rakudo/rakudo,ugexe/rakudo,nbrown/rakudo,tony-o/deb-rakudodaily,sergot/rakudo,retupmoca/rakudo,tony-o/deb-rakudodaily,rakudo/rakudo,jonathanstowe/rakudo,lucasbuchala/rakudo,ab5tract/rakudo,ugexe/rakudo,nunorc/rakudo,cognominal/rakudo,awwaiid/rakudo,sergot/rakudo,teodozjan/rakudo,pmurias/rakudo,tbrowder/rakudo,skids/rakudo,azawawi/rakudo,sjn/rakudo,Gnouc/rakudo,raydiak/rakudo,cognominal/rakudo,tbrowder/rakudo,nbrown/rakudo,dankogai/rakudo,paultcochrane/rakudo,ab5tract/rakudo,usev6/rakudo,paultcochrane/rakudo,sergot/rakudo,dwarring/rakudo,pmurias/rakudo,dwarring/rakudo,samcv/rakudo,raydiak/rakudo,ab5tract/rakudo,azawawi/rakudo,retupmoca/rakudo,tony-o/rakudo,lucasbuchala/rakudo,salortiz/rakudo,cygx/rakudo,zostay/rakudo,awwaiid/rakudo,MasterDuke17/rakudo,niner/rakudo,ungrim97/rakudo,laben/rakudo,LLFourn/rakudo,rakudo/rakudo,rjbs/rakudo,sjn/rakudo,cognominal/rakudo,lucasbuchala/rakudo,salortiz/rakudo,tony-o/rakudo,samcv/rakudo,retupmoca/rakudo,cognominal/rakudo,jonathanstowe/rakudo,softmoth/rakudo,samcv/rakudo,rjbs/rakudo,paultcochrane/rakudo,awwaiid/rakudo,tbrowder/rakudo,rakudo/rakudo,MasterDuke17/rakudo,ungrim97/rakudo,Leont/rakudo,MasterDuke17/rakudo,niner/rakudo,niner/rakudo,Gnouc/rakudo,skids/rakudo,zhuomingliang/rakudo,b2gills/rakudo,rakudo/rakudo,laben/rakudo,nbrown/rakudo,LLFourn/rakudo,rjbs/rakudo,dwarring/rakudo,awwaiid/rakudo,Gnouc/rakudo,salortiz/rakudo,azawawi/rakudo,tony-o/deb-rakudodaily,sjn/rakudo,ugexe/rakudo,tbrowder/rakudo,cygx/rakudo,cygx/rakudo,rakudo/rakudo,ab5tract/rakudo,jonathanstowe/rakudo,labster/rakudo,nbrown/rakudo,jonathanstowe/rakudo,raydiak/rakudo,sjn/rakudo,ungrim97/rakudo,usev6/rakudo,ugexe/rakudo,zhuomingliang/rakudo,nbrown/rakudo,b2gills/rakudo,sjn/rakudo,pmurias/rakudo,softmoth/rakudo,Gnouc/rakudo,tony-o/deb-rakudodaily,tony-o/rakudo,Gnouc/rakudo,paultcochrane/rakudo,sergot/rakudo,retupmoca/rakudo,skids/rakudo,niner/rakudo,MasterDuke17/rakudo,salortiz/rakudo,zostay/rakudo,skids/rakudo,jonathanstowe/rakudo,MasterDuke17/rakudo,usev6/rakudo,usev6/rakudo,skids/rakudo,b2gills/rakudo,lucasbuchala/rakudo,cygx/rakudo,salortiz/rakudo,Leont/rakudo,teodozjan/rakudo,tony-o/rakudo,ugexe/rakudo,dwarring/rakudo,tony-o/deb-rakudodaily,softmoth/rakudo,nunorc/rakudo,LLFourn/rakudo,laben/rakudo,dankogai/rakudo,raydiak/rakudo,labster/rakudo,tony-o/deb-rakudodaily,zostay/rakudo,samcv/rakudo,usev6/rakudo,tony-o/rakudo,paultcochrane/rakudo,nunorc/rakudo,cygx/rakudo,tony-o/rakudo,LLFourn/rakudo,Leont/rakudo,zostay/rakudo,softmoth/rakudo,samcv/rakudo,teodozjan/rakudo,nunorc/rakudo,azawawi/rakudo,dankogai/rakudo