{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"diag.arg(\"expected_dyn_type\","}]}
                diag.arg("expected_dyn_type", expected_dyn_type.to_string());
            InvalidVTableTrait { expected_dyn_type, vtable_dyn_type } => {
                diag.arg("vtable_dyn_type", vtable_dyn_type.to_string());