Recursive printing of REPR List, Dictionary, Tuple

Expected:
``` python
Gpython 3.4.0
>>> a = [1,2,3]
>>> a[0] = a
>>> a
[[...], 2, 3]
```

Actual behavior:
```python
Gpython 3.4.0
>>> a = [1,2,3]
>>> a[0] = a
>>> a
runtime: goroutine stack exceeds 1000000000-byte limit
fatal error: stack overflow
```