{"ast_node_type":"variable","tokens":[{"end":73,"kind":"keyword","start":0,"text":"let"}]}
        let fn_sig = if decl.output.is_suggestable_infer_ty().is_some() {
    } else if let Some(hir::FnSig { header, decl, span: fn_sig_span }) = node.fn_sig() {
            // In the case that we're recovering `fn() -> W<_>` or some other return