Don't include closure parameter signature in lexical name
Don't include closure parameter signature in lexical name

See previous commit for a little more detail.  `&block:(Dog)` was
getting inserted into the pad as `&block:(Dog)` rather than just
`&block`

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