Fix thinko in block migration predicate check.
Fix thinko in block migration predicate check.

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