= ASSERT2( isNonRec is_rec, ppr new_fn_id ) -- The thunk must be non-recursive
checkSize new_fn_id rhs $
splitThunk new_fn_id rhs
= ASSERT2( isNonRec is_rec, ppr new_fn_id ) -- The thunk must be non-recursive
checkSize new_fn_id rhs $
splitThunk new_fn_id rhs