{"ast_node_type":"variable","tokens":[{"end":74,"kind":"keyword","start":0,"text":"let"}]}
        let lldecl = self.declare_fn(symbol_name, fn_abi, Some(instance));
        let fn_abi = self.fn_abi_of_instance(instance, ty::List::empty());
        llvm::set_linkage(lldecl, base::linkage_to_llvm(linkage));