Remove RawResponse::empty()

crates/gen_lsp_server/src/msg.rs

@@ -120,11 +120,6 @@ pub fn err(id: u64, code: i32, message: String) -> RawResponse {
         let error = RawResponseError { code, message, data: None };
         RawResponse { id, result: None, error: Some(error) }
     }
-    /// Returns an "empty" RawResponse
-    /// Empty response still has a value `()` in its `result` field.
-    pub fn empty(id: u64) -> RawResponse {
-        RawResponse { id, result: Some(to_value(&()).unwrap()), error: None }
-    }
 }
 
 impl RawNotification {

crates/ra_lsp_server/src/main_loop.rs

@@ -425,8 +425,11 @@ fn on<R>(&mut self, f: fn(ServerWorld, R::Params) -> Result<R::Result>) -> Resul
                                     //     ErrorCode::ContentModified as i32,
                                     //     "content modified".to_string(),
                                     // )
-                                    RawResponse::empty(id)
-
+                                    RawResponse {
+                                        id,
+                                        result: Some(serde_json::to_value(&()).unwrap()),
+                                        error: None,
+                                    }
                                 } else {
                                     RawResponse::err(
                                         id,