Simon Peyton Jones authored May 27, 2021 and Marge Bot committed Jun 05, 2021

As #19882 pointed out, we were simply doing rubbish literals wrong.
(I'll refrain from explaining the wrong-ness here -- see the ticket.)

This patch fixes it by adding a Type (of kind RuntimeRep) as field of
LitRubbish, rather than [PrimRep].

The Note [Rubbish literals] in GHC.Types.Literal explains the details.