use "try .MARKED" instead of ".?MARKED"
use "try .MARKED" instead of ".?MARKED"

The .?MARKED form apparently gives heartburn when there's a FALLBACK.
Since we're just using it to generate an error message outside of any hot
path, we'll upgrade it to use a try.

softmoth/rakudo,MasterDuke17/rakudo,raydiak/rakudo,awwaiid/rakudo,Gnouc/rakudo,labster/rakudo,lucasbuchala/rakudo,tony-o/rakudo,tbrowder/rakudo,labster/rakudo,jonathanstowe/rakudo,usev6/rakudo,tbrowder/rakudo,awwaiid/rakudo,awwaiid/rakudo,nbrown/rakudo,usev6/rakudo,salortiz/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,nbrown/rakudo,jonathanstowe/rakudo,sjn/rakudo,tbrowder/rakudo,sjn/rakudo,lucasbuchala/rakudo,rakudo/rakudo,tony-o/rakudo,salortiz/rakudo,jonathanstowe/rakudo,raydiak/rakudo,salortiz/rakudo,softmoth/rakudo,sjn/rakudo,labster/rakudo,MasterDuke17/rakudo,rakudo/rakudo,jonathanstowe/rakudo,lucasbuchala/rakudo,labster/rakudo,softmoth/rakudo,tbrowder/rakudo,nbrown/rakudo,rakudo/rakudo,tbrowder/rakudo,Gnouc/rakudo,nbrown/rakudo,awwaiid/rakudo,usev6/rakudo,Gnouc/rakudo,tony-o/rakudo,salortiz/rakudo,jonathanstowe/rakudo,softmoth/rakudo,MasterDuke17/rakudo,salortiz/rakudo,Gnouc/rakudo,MasterDuke17/rakudo,raydiak/rakudo,Gnouc/rakudo,rakudo/rakudo,Gnouc/rakudo,tony-o/rakudo,rakudo/rakudo,rakudo/rakudo,tony-o/rakudo,usev6/rakudo,tbrowder/rakudo,softmoth/rakudo,usev6/rakudo,salortiz/rakudo,labster/rakudo,awwaiid/rakudo,raydiak/rakudo,nbrown/rakudo,nbrown/rakudo,labster/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,sjn/rakudo,sjn/rakudo,tony-o/rakudo