Fix pedantic build

michaelpj · michaelpj · commit 3a3473d1b6fc · 2024-01-28T19:18:00.000Z
diff --git a/haskell-language-server.cabal b/haskell-language-server.cabal
@@ -393,7 +393,7 @@ library hls-eval-plugin
     , unordered-containers
 
   if flag(pedantic)
-    ghc-options: -Werror
+    ghc-options: -Werror -Wwarn=redundant-constraints
 
   default-language:   Haskell2010
   default-extensions:
