Nullable condition operator

[Martin6265 via Digitalmars-d]

I dont said C# is better, just missing some preferred stuffs from 
other languages.
`.?` from C# is same thing as message passing in ObjC. (You can 
send message to invalid object without accessing null pointer). 
And I miss that stuff in D.

Maybe will create a new instance of T if T is null, right?

class Responder {
Responder m_parent;


void SetSomething(int a) {
m_parent.maybe.SetSomething(a);
}
}

So, this example will ends in infinite loop.
But I don't want to call SetSomething on m_parent if m_parent is 
null.