Fix crash in `temp`/`let` with parametarized hashes
Fix crash in `temp`/`let` with parametarized hashes

Fixes RT#127291: https://rt.perl.org/Ticket/Display.html?id=127291

When we stash the hash for later restoration, we copy it into
a non-parametarized hash that stringifies the keys, causing a crash
when it's later restored into parametarized container.

Fix by stashing the hash into Mu/Mu parameterized hash that
leaves values untouched.

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