let/temp should be able to take Mu
let/temp should be able to take Mu

- this fixes the symptom of RT #125398
- the underlying issue is really that with "no strict" containers
  are apparently created with Mu, rather than Any

rakudo/rakudo,tbrowder/rakudo,Gnouc/rakudo,tbrowder/rakudo,lucasbuchala/rakudo,softmoth/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,tony-o/rakudo,salortiz/rakudo,nbrown/rakudo,awwaiid/rakudo,nbrown/rakudo,salortiz/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,Gnouc/rakudo,MasterDuke17/rakudo,nbrown/rakudo,awwaiid/rakudo,softmoth/rakudo,awwaiid/rakudo,softmoth/rakudo,rakudo/rakudo,MasterDuke17/rakudo,Gnouc/rakudo,tbrowder/rakudo,lucasbuchala/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,rakudo/rakudo,tony-o/rakudo,tbrowder/rakudo,nbrown/rakudo,Gnouc/rakudo,labster/rakudo,rakudo/rakudo,tony-o/rakudo,tony-o/rakudo,labster/rakudo,awwaiid/rakudo,salortiz/rakudo,labster/rakudo,salortiz/rakudo,salortiz/rakudo,salortiz/rakudo,labster/rakudo,labster/rakudo,softmoth/rakudo,tony-o/rakudo,rakudo/rakudo,tbrowder/rakudo,labster/rakudo,softmoth/rakudo,awwaiid/rakudo,Gnouc/rakudo,tony-o/rakudo,nbrown/rakudo,Gnouc/rakudo,rakudo/rakudo,nbrown/rakudo