Avoid re-using register when deconting.
Avoid re-using register when deconting.

The input register may actually contain the actual variable, now we do
lexical to local lowering.

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