Fix rw-stripping bug in statement modifier form of for.
Fix rw-stripping bug in statement modifier form of for.

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