{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"if"}]}
                if tcx.is_lang_item(callee, LangItem::BeginPanic) {
                // const-eval of the `begin_panic` fn assumes the argument is `&str`
                    match args[0].node.ty(&self.ccx.body.local_decls, tcx).kind() {