[v6.d REVIEW] Move LTA error for `++.++` test from roast
[v6.d REVIEW] Move LTA error for `++.++` test from roast

Orig: https://github.com/perl6/roast/commit/4e973da24

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