{"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"if"}]}
        if span.edition().at_least_edition_future() && self.features.explicit_extern_abis() {
        // call site which do not have a macro backtrace. See #61963.
            self.dcx().emit_err(errors::MissingAbi { span });