Fully dynamic d by opDotExp overloading

[Christopher Wright]

davidl wrote:
> After tweaking dmd a bit litte, i get the dotexp overloading work.

Do want.

With this and extended runtime information, you can create a Variant 
that works exactly like the original type, allowing you to call methods 
on it without extracting it to the original type, just throwing an 
ArgumentException or MethodMissingException if you give it something bad.