syntax error by rest parameter of spread syntax

hello 
sorry if my misleading,  my code is not parsed by esprima

### Steps to reproduce

copy and paste below to [demo](https://esprima.org/demo/parse.html)

```js
var ops={
    a:1,
    b:2
}

function fn(ops){
    console.log(ops)
}

fn({...ops})
```


### Actual output
_Error: Line 10: Unexpected token ..._

