std.complex MAY I REMIND YOU?

[Walter Bright]

Don Clugston wrote:
> So I have a vague fear that this might create a lot of work in the 
> future - I hope I'm wrong. We might just need to dampen expectations 
> about which operations will be supported.

std.complex is more of a placeholder for the future. I want to remove 
the core complex types, but the necessary compiler optimizations aren't 
implemented yet, and there are more important things to be done at the 
moment.