Build failure due to syntax error in as-pattern

[meicpalmer]

llvm-hs-pretty> /tmp/stack-04e76048a098e482/llvm-hs-pretty-0.9.0.0/src/LLVM/Pretty.hs:480:7: error:
llvm-hs-pretty>     Found a binding for the ‘@’ operator in a pattern position.
llvm-hs-pretty>     Perhaps you meant an as-pattern, which must not be surrounded by whitespace
llvm-hs-pretty>     |
llvm-hs-pretty> 480 |     e @ Invoke {..} ->
llvm-hs-pretty>     |       ^

[meicpalmer]

I think later versions of GHC don't allow this syntax but earlier versions do. I don't know which version made the change.

[edgar-gip]

There is a PR with a fix for this already, but unfortunately it's been sitting for two years:
#87