continue keyword inside finally block

This code is legal in 3.8+:

```python
for x in range(10):
    try:
        pass
    finally:
        continue
```

But we show:

![image](https://user-images.githubusercontent.com/5341706/66783167-35fb3b00-ee8c-11e9-8171-a8dac41645ff.png)
