The test crash in cdef_multiple_inheritance has to do with a change in the method assignment. In the old version, the code

cdef class Both(CBase, PyBase):
    cdef dict __dict__
    cdef c_method(self):
        return "Both"
    cpdef cp_method(self):
        return "Both"
    def call_c_method(self):
        return self.c_method()

would assign cp_method and call_c_method to a PyMethodDef struct. In the new code only call_c_method is assigned in the PyMethodDef struct, but both are assigned to the __pyx_ptype...Both->tp_dict inside __Pyx_Init_Globals which happens while __pyx_ptype...Both is still NULL. The assignment __pyx_ptype...Both = &__pyx_type...Both happens in the next fragment, a few lines down.

This PR reorders the fragments so that __pyx_type...Both is set up before the method assignments and does not seem to cause any new test failures.