checkedint call removal

[Walter Bright via Digitalmars-d]

On 7/30/2014 10:19 PM, bearophile wrote:
> Walter Bright:
>
>> No, it will break code that already is broken.
>
> I have probably lost the grasp of this part of the discussion. But I don't see
> what's broken in using assert to verify that a pointer is not null. Do you think
> that pointer comes from "outside"?

Daniel wants his code to be in a valid state even if the assert is not true, 
i.e. he wants it to continue to operate as if the pointer might be null.