Add melange-json-native 2.0.0 (#427482)

* ocamlPackages.melange-json-native: init at 2.0.0

* ocamlPackages.melange-json(-native): add vog to maintainers

* ocamlPackages.melange-json: Add comment about why we currently disable doCheck

* ocamlPackages.melange-json: Remove dependencies that are only needed by melange-json-native

pkgs/development/ocaml-modules/melange-json/default.nix

···
   };
 
   nativeBuildInputs = [ melange ];
-  buildInputs = [
-    melange
-    yojson
-    ppxlib
-  ];
+  propagatedBuildInputs = [ melange ];
+  doCheck = false; # Fails due to missing "melange-jest", which in turn fails in command "npx jest"
   meta = {
     description = "Compositional JSON encode/decode library and PPX for Melange and OCaml";
     homepage = "https://github.com/melange-community/melange-json";
     license = lib.licenses.lgpl3;
-    maintainers = [ lib.maintainers.GirardR1006 ];
+    maintainers = [
+      lib.maintainers.GirardR1006
+      lib.maintainers.vog
+    ];
   };
 }

pkgs/development/ocaml-modules/melange-json/native.nix

···
+{
+  buildDunePackage,
+  melange-json,
+  ppxlib,
+  yojson,
+}:
+
+buildDunePackage {
+  pname = "melange-json-native";
+  inherit (melange-json) version src;
+  minimalOCamlVersion = "4.12";
+  propagatedBuildInputs = [
+    ppxlib
+    yojson
+  ];
+  doCheck = false; # Fails due to missing "melange-jest", which in turn fails in command "npx jest"
+  meta = melange-json.meta // {
+    description = "Compositional JSON encode/decode PPX for OCaml";
+  };
+}

pkgs/top-level/ocaml-packages.nix

···
         melange = callPackage ../development/tools/ocaml/melange { };
 
         melange-json = callPackage ../development/ocaml-modules/melange-json { };
+        melange-json-native = callPackage ../development/ocaml-modules/melange-json/native.nix { };
 
         memprof-limits = callPackage ../development/ocaml-modules/memprof-limits { };