error: [DoNotCall] Calling run on Thread runs work on this thread

Sample code:

```java
class TThread extends Thread {
@Override
public void run() {
this.run();
}
}
```

Use cases:
Thread hasn't finished processing (maybe there was an error, and the programmer wants to retry, maybe it only incrementally does stuff, and notifies a consumer about the new data, etc.).

With that said, `DoNotCall` should probably ignore recursive calls instead of special-casing `Thread`.