{"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"if"}]}
                    if ocx.select_all_or_error().is_empty() {
                        ocx.normalize(&ObligationCause::dummy(), self.param_env, fn_sig);
                        let normalized_fn_sig = self.resolve_vars_if_possible(normalized_fn_sig);