Short list with things to finish for D2

[Chad J]

Andrei Alexandrescu wrote:
> ...
> Any more thoughts, please let them known. ...
> 
> 
> Andrei

I like what I'm reading.  Pretty clever!

I imagine it'd be convenient to easily distinguish between pure binary
operators and opAssign binary operators.  I can easily envision myself
marking operator overloads such as + and * as pure to gain a performance
boost.  Overloads like += and *= OTOH, often cannot be marked as pure.

- Chad