{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"hir::ExprKind::Call(callee,"}]}
            hir::ExprKind::Call(callee, args) => {
        let (span, def_id, fn_gen_args, arg_tys_and_spans) = match expr.kind {
                match cx.typeck_results().node_type(callee.hir_id).kind() {