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Using ghc-8.6.3.
```Haskell
{-# LANGUAGE GeneralizedNewtypeDeriving, UndecidableInstances, FlexibleContexts, GADTs #-}
module Test where
import Universum
newtype Test = Test [Int]
derivi…
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```haskell
{-# LANGUAGE ImpredicativeTypes, TypeApplications, GADTs #-}
module ImpredErr where
import Clash.Prelude
data Ex where
ExT :: (forall a . String -> a) -> Ex
f :: Ex
f = ExT (…
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Need a new language for this.
dhess updated
2 years ago
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I'm on a sabbatical, and I'm devoting some of that time to slamming myself face first into the bleeding edge of stuff that I think is neat in Haskell. I'm presently throwing myself at getting `in-othe…
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From https://twitter.com/avsm/status/1316324769718063104
summary is: (to edit)
- Building (dune)
- packaging and distributing code (OPAM)
- dealing with complex projects with a mix of C, Rust …
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[Manual](https://downloads.haskell.org/ghc/9.0.1/docs/html/users_guide/exts/type_families.html#data-families)
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### Thank you for the bug report
- [X] I am using the latest version of `lsp-mode` related packages.
- [X] I checked [FAQ](https://emacs-lsp.github.io/lsp-mode/page/faq/) and [Troubleshooting](https:…
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In short, while we couldn't monitor performance, because the code only worked with 9.2.2 (#13) and 9.2.2 (and HEAD) had (has) degraded and unpredictable performance (#14), our code got much slower. Ne…
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### Thank you for the bug report
- [X] I am using the latest version of `lsp-mode` related packages.
- [X] I checked [FAQ](https://emacs-lsp.github.io/lsp-mode/page/faq/) and [Troubleshooting](https:…
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**Original bug ID:** 6806
**Reporter:** @sliquister
**Assigned to:** @diml
**Status:** closed (set by @xavierleroy on 2017-02-16T14:16:21Z)
**Resolution:** fixed
**Priority:** normal
**Severity:…