message: changed `size()==0` to `empty()`
diff: @@ -303,7 +303,7 @@ struct TextDocumentCompletionHandler : MessageHandler {
  out.result.items = results;
  // Emit completion results.
  - if (existing_completion.size()==0 && is_global_completion) {
  + if (existing_completion.empty() && is_global_completion) {
  LOG_S(INFO) << "Existing completion is empty, no completion results will be returned";
  Out_TextDocumentComplete out;
  out.id = request->id;
  