PCase04.stderr

PCase04.hs:13:14: error: [GHC-24922]
    " FExpr is not in scope at a reify
    " In the quasi-quotation:
        [pCase|FExpr e of
        Num _ -> undefined
      |]
   |
13 | t e = [pCase|FExpr e of
   |              ^^^^^^^^^^...