Use hls-2.10 (#2344)

Author: hamishmack

build.nix

@@ -60,12 +60,7 @@ in rec {
     } // pkgs.lib.optionalAttrs (ghcFromTo "9.0" "9.11") {
       "hls" = tool compiler-nix-name "haskell-language-server" {
         inherit evalPackages;
-        src = pkgs.haskell-nix.sources.hls;
-        cabalProjectLocal = ''
-          if impl(ghc >=9.6.7) && impl(ghc <9.7) || impl(ghc >=9.8.3)
-            constraints: ghc-lib-parser >=9.8.4
-            allow-older: ghc-lib-parser:filepath
-        '';
+        src = pkgs.haskell-nix.sources."hls-2.10";
       };
     })
   );

flake.lock

@@ -19,6 +19,7 @@
     "hls-2.7" = { url = "github:haskell/haskell-language-server/2.7.0.0"; flake = false; };
     "hls-2.8" = { url = "github:haskell/haskell-language-server/2.8.0.0"; flake = false; };
     "hls-2.9" = { url = "github:haskell/haskell-language-server/2.9.0.1"; flake = false; };
+    "hls-2.10" = { url = "github:haskell/haskell-language-server/2.10.0.0"; flake = false; };
     "hls"     = { url = "github:haskell/haskell-language-server"; flake = false; };
     hackage = {
       url = "github:input-output-hk/hackage.nix";

flake.nix

@@ -3,13 +3,8 @@ let
   project = haskell-nix.cabalProject' {
     inherit compiler-nix-name evalPackages;
     name = "haskell-language-server";
-    src = haskell-nix.sources.hls;
+    src = haskell-nix.sources."hls-2.10";
     configureArgs = "--disable-benchmarks --disable-tests"; # This makes cabalProject' more like the `tool` function
-    cabalProjectLocal = ''
-      if impl(ghc >=9.6.7) && impl(ghc <9.7) || impl(ghc >=9.8.3)
-        constraints: ghc-lib-parser >=9.8.4
-        allow-older: ghc-lib-parser:filepath
-    '';
   };
 in recurseIntoAttrs {
   ifdInputs = {