dip1000 and preview in combine to cause extra safety errors

[rikki cattermole]

On 14/06/2022 10:49 AM, Walter Bright wrote:
> On 6/10/2022 5:46 AM, Steven Schveighoffer wrote:
>> I would love to see a viable safe-by-default DIP get added.
> 
> At least we can agree on that!

I would love to see a PR turn on attribute inference for all functions.

Who knows, we might be closer to having this work for most code than we 
think!