[pypy-issue] Issue #2792: _PyTuple_Resize crashes (regression in master) (pypy/pypy)

[Christoph Reiter]

New issue 2792: _PyTuple_Resize crashes (regression in master)
https://bitbucket.org/pypy/pypy/issues/2792/_pytuple_resize-crashes-regression-in

Christoph Reiter:

This seems to crash with current master, but works with 5.10:

```
#!C
PyObject *foo = PyTuple_New(1);
_PyTuple_Resize (foo, 1);
```