remove duplicates in series

src/extension_commands.ml

@@ -550,6 +550,12 @@ module Search_by_type = struct
         "The installed version of `ocamllsp` does not support type search. %s"
         msg
 
+  let rec remove_duplicates = function
+    | (a : Custom_requests.Type_search.type_search_result) :: (b :: _ as t) ->
+      if String.equal a.name b.name && a.cost = b.cost then remove_duplicates t
+      else a :: remove_duplicates t
+    | unique -> unique
+
   let get_search_results ~query ~limit ~with_doc ~position text_editor client =
     let open Promise.Syntax in
     let doc = TextEditor.document text_editor in
@@ -565,7 +571,7 @@ module Search_by_type = struct
     | [] ->
       show_message `Info "Empty results";
       [] |> Promise.return
-    | res -> res |> Promise.return
+    | res -> remove_duplicates res |> Promise.return
 
   let display_search_results results =
     Vscode.(