'Test if two addresses belong to the same section.
:param int addr_a:  The first address to test.
:param int addr_b:  The second address to test.
:return:            True if the two addresses belong to the same section or both of them do not belong to any
section, False otherwise.
:rtype:             bool'

def _addrs_belong_to_same_section(self, addr_a, addr_b):

    obj = self.project.loader.find_object_containing(addr_a)
    if (obj is None):
        obj_b = self.project.loader.find_object_containing(addr_b)
        if (obj_b is None):
            return True
        return False
    src_section = obj.find_section_containing(addr_a)
    if (src_section is None):
        dst_section = obj.find_section_containing(addr_b)
        if (dst_section is None):
            return True
        return False
    return src_section.contains_addr(addr_b)
