Make build_signature_object a method.
Make build_signature_object a method.

In preparation for being able to call it after we parse a signature.

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