currently providing optimisations for
- getattr(o,a)
- getattr(o,a,d)
- X.append(o)
- L.append(o)
- list.append(L,x)

Throwing an error is to invasive for 0.11.x, and also one needs to be able to subclass/access attributes of builtin types before we get rid of the declaration altogether.

--HG--
rename : tests/bugs/missing_self_in_cpdef_method_T165.pyx => tests/errors/missing_self_in_cpdef_method_T165.pyx