Can we kill the D calling convention already?

[mta`chrono]

As D is more than just C or C++ it may take account for providing it's
own calling convention.

_BUT_ (That's the point, I agree to Alex), it needs to be consistent
across _different compilers for the same plattform_.

Maybe someone can point out the benefits of having a different calling
convention on linux and windows for the same target machine.