Ben Orchard authored 2 years ago and Marge Bot committed 1 year ago

Adds a new LANGUAGE pragma ExtendedLiterals, which enables defining
unboxed numeric literals such as `0xFF#Word8 :: Word8#`.

Implements GHC proposal 0451:
https://github.com/ghc-proposals/ghc-proposals/blob/b384a538b34f79d18a0201455b7b3c473bc8c936/proposals/0451-sized-literals.rst



Fixes #21422.

Bumps haddock submodule.

Co-authored-by: Krzysztof Gogolewski <krzysztof.gogolewski@tweag.io>