Typing for numpy
Typing for numpy

* if a is a ndarray<int>, a += 2. is always a ndarray<int>
* type of a in the case of a+=2 is not decltype(a + 2) but __combine(a, decltype(a + 2)).
* __combine(ndarray, T) is ndarray

pombredanne/pythran,pbrunet/pythran,hainm/pythran,hainm/pythran,artas360/pythran,pombredanne/pythran,serge-sans-paille/pythran,pombredanne/pythran,pbrunet/pythran,hainm/pythran,artas360/pythran,serge-sans-paille/pythran,artas360/pythran,pbrunet/pythran