T11970.hs:6:40: error: [GHC-88993]
    • The type constructor ‘C’ is not the parent of the record selector ‘recSel’.
      Record selectors can only be exported with their parent type constructor.
      Parent: B
    • In the export: C(C, P, x, Q, B, recSel)

T11970.hs:6:40: error: [GHC-88993]
    • The type constructor ‘C’ is not the parent of the data constructor ‘B’.
      Data constructors can only be exported with their parent type constructor.
      Parent: B
    • In the export: C(C, P, x, Q, B, recSel)