Short list with things to finish for D2

[Chad J]

Andrei Alexandrescu wrote:
> grauzone wrote:
>>
>> Also, you should fix the auto-flattening of tuples before it's too
>> late. I think everyone agrees that auto-flattening is a bad idea, and
>> that tuples should be nestable. Flattening can be done manually with
>> an unary operator.
>>
>> (Introducing sane tuples (e.g. unify type and value tuples, sane and
>> short syntax, and all that) can wait for later if it must. Introducing
>> these can be downwards compatible, I hope.)
> 
> Non-flattening should be on the list but I am very afraid the solution
> would take a long time to design, implement, and debug. I must discuss
> this with Walter.
> 
> Andrei

Might I suggest a daring stop-gap:  kill tuples altogether.

Then we can implement them later correctly and it won't break backwards
compatibility.

Ideally it isn't an all-or-nothing proposition either.  Maybe we can
just kill the parts that are bad.  Like disallow tuples-of-tuples, but
allow tuples that are already flat.

- Chad