Implement nominal type checks in binder.
Implement nominal type checks in binder.

Actually regresses us a tiny bit 'cus it picks up on something that
is not yet implemented in the HLL type mapping. But gets rid of all
the warnings.

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