Fully dynamic d by opDotExp overloading

[BCS]

Hello Christopher,

> The utility is when you are looking for methods to invoke via runtime
> reflection, you can determine that a given function is one of these
> runtime opDotExp equivalents.

So it is being argued that there should be a standard way to do a run time 
function invocation system? I'll buy that.

> 
> I don't know how useful this is, in point of fact. Unless there's a
> standard system in D for integrating with scripting languages, anyway.
> 

Maybe there should be.