Add :end,:k,:v,:p adverbs to List.first
Add :end,:k,:v,:p adverbs to List.first

:end  indicates you want searching from the end of the list (like last-index)
:k    return the ordinal number, instead of the value
:v    return the value (default)
:p    return a pair of ordinal number => value

This effectively makes first-index and last-index obsolete.  Perhaps we
should deprecate them.

salortiz/rakudo,labster/rakudo,rakudo/rakudo,LLFourn/rakudo,paultcochrane/rakudo,usev6/rakudo,Gnouc/rakudo,usev6/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,azawawi/rakudo,samcv/rakudo,zostay/rakudo,rakudo/rakudo,ab5tract/rakudo,lucasbuchala/rakudo,ungrim97/rakudo,tony-o/rakudo,MasterDuke17/rakudo,Gnouc/rakudo,usev6/rakudo,dankogai/rakudo,dankogai/rakudo,b2gills/rakudo,ugexe/rakudo,tbrowder/rakudo,sjn/rakudo,softmoth/rakudo,Gnouc/rakudo,samcv/rakudo,MasterDuke17/rakudo,rakudo/rakudo,nbrown/rakudo,softmoth/rakudo,LLFourn/rakudo,ugexe/rakudo,sjn/rakudo,tbrowder/rakudo,paultcochrane/rakudo,azawawi/rakudo,raydiak/rakudo,usev6/rakudo,zostay/rakudo,samcv/rakudo,ab5tract/rakudo,dankogai/rakudo,jonathanstowe/rakudo,paultcochrane/rakudo,nbrown/rakudo,Gnouc/rakudo,b2gills/rakudo,jonathanstowe/rakudo,salortiz/rakudo,awwaiid/rakudo,awwaiid/rakudo,ab5tract/rakudo,b2gills/rakudo,tony-o/rakudo,lucasbuchala/rakudo,azawawi/rakudo,ab5tract/rakudo,lucasbuchala/rakudo,paultcochrane/rakudo,Gnouc/rakudo,rakudo/rakudo,tony-o/rakudo,sjn/rakudo,jonathanstowe/rakudo,nbrown/rakudo,azawawi/rakudo,ab5tract/rakudo,nbrown/rakudo,usev6/rakudo,ungrim97/rakudo,tony-o/rakudo,Gnouc/rakudo,sjn/rakudo,LLFourn/rakudo,softmoth/rakudo,lucasbuchala/rakudo,tbrowder/rakudo,zostay/rakudo,salortiz/rakudo,awwaiid/rakudo,nbrown/rakudo,jonathanstowe/rakudo,MasterDuke17/rakudo,ungrim97/rakudo,b2gills/rakudo,dankogai/rakudo,salortiz/rakudo,jonathanstowe/rakudo,ugexe/rakudo,ungrim97/rakudo,awwaiid/rakudo,LLFourn/rakudo,lucasbuchala/rakudo,salortiz/rakudo,nbrown/rakudo,tbrowder/rakudo,azawawi/rakudo,labster/rakudo,tony-o/rakudo,dankogai/rakudo,sjn/rakudo,ugexe/rakudo,softmoth/rakudo,raydiak/rakudo,samcv/rakudo,tony-o/rakudo,labster/rakudo,raydiak/rakudo,softmoth/rakudo,raydiak/rakudo,salortiz/rakudo,ugexe/rakudo,labster/rakudo,samcv/rakudo,ungrim97/rakudo,awwaiid/rakudo,rakudo/rakudo,rakudo/rakudo,paultcochrane/rakudo,labster/rakudo,labster/rakudo,MasterDuke17/rakudo,LLFourn/rakudo,b2gills/rakudo,tbrowder/rakudo,zostay/rakudo