make .IO.{d|s|z} by about 40% faster
make .IO.{d|s|z} by about 40% faster

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