Support GHC 9.4

[Bodigrim]

$ cabal unpack cborg-0.2.7.0
$ cd cborg-0.2.7.0
$ cabal test -w ghc-9.4.0.20220501 --allow-newer
[ 4 of 14] Compiling Codec.CBOR.Decoding

src/Codec/CBOR/Decoding.hs:331:19: error:
    • Couldn't match expected type ‘Int64#’ with actual type ‘Int#’
    • In the first argument of ‘I64#’, namely ‘n’
      In the expression: I64# n
      In an equation for ‘toInt64’: toInt64 n = I64# n
    |
331 | toInt64  n = I64# n
    |                   ^

src/Codec/CBOR/Decoding.hs:332:19: error:
    • Couldn't match expected type ‘Word64#’ with actual type ‘Word#’
    • In the first argument of ‘W64#’, namely ‘n’
      In the expression: W64# n
      In an equation for ‘toWord64’: toWord64 n = W64# n
    |
332 | toWord64 n = W64# n
    |                   ^

src/Codec/CBOR/Decoding.hs:751:53: error:
    • Couldn't match expected type ‘Word64#’ with actual type ‘Word#’
    • In the first argument of ‘W64#’, namely ‘w#’
      In the first argument of ‘k’, namely ‘(W64# w#)’
      In the expression: k (W64# w#)
    |
751 |   Decoder (\k -> return (ConsumeTag (\w# -> k (W64# w#))))
    |                                                     ^^

src/Codec/CBOR/Decoding.hs:772:62: error:
    • Couldn't match expected type ‘Word64#’ with actual type ‘Word#’
    • In the first argument of ‘W64#’, namely ‘w#’
      In the first argument of ‘k’, namely ‘(W64# w#)’
      In the expression: k (W64# w#)
    |
772 |   Decoder (\k -> return (ConsumeTagCanonical (\w# -> k (W64# w#))))
    |                                                              ^^

src/Codec/CBOR/Decoding.hs:971:74: error:
    • Couldn't match expected type ‘Int64#’ with actual type ‘Int#’
    • In the first argument of ‘I64#’, namely ‘off#’
      In the first argument of ‘k’, namely ‘(I64# off#)’
      In the expression: k (I64# off#)
    |
971 | peekByteOffset = Decoder (\k -> return (PeekByteOffset (\off# -> k (I64# off#))))
    |

[juhp]

Hmm I am seeing similar errors when I build cborg-2.6.0 & 2.7.0 with 32bit i686 ghc-8.10.7 (2.5.0 is okay).

I filed #293 about this.