Default import of static Collectors members (#4783)
Default import of static Collectors members (#4783)

This allows easy typing of

```java
return stream().collect(toList());
```

instead of

```java
return stream().collect(Collectors.toList());
```

and then needing to fight the automatic import organizer.

Signed-off-by: Simon Kaufmann <fe80eec60aa78958d679ac47c8294c008a65d46f@googlemail.com>
Snickermicker/smarthome,Snickermicker/smarthome,Snickermicker/smarthome,Snickermicker/smarthome