Request to backport fix for GHC issue 18708 here

[peterbecich]

There was a GHC issue https://gitlab.haskell.org/ghc/ghc/-/issues/18708 which has been resolved: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/6554/diffs?commit_id=917195a1943b783e3745a5e486ee2684c42c1664

The patch was backported to the release branch for GHC 8.10.8: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/6554?commit_id=917195a1943b783e3745a5e486ee2684c42c1664

Would it be acceptable for me to backport this here? My goal is to apply the same fix to GHCJS 8.10.7.

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In haskell.nix this patch has already been applied to GHC 8.10.7: input-output-hk/haskell.nix#1321

[peterbecich]

This would accomplish the same thing: ghcjs/ghcjs#835