{"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"//"}]}
                    // This is a "byval" argument, so we don't apply the `restrict` attribute on it.
                PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: true } => {
                    on_stack_param_indices.insert(argument_tys.len());