ref for (const) variables

[Namespace via Digitalmars-d-learn]

Currently, if you want to store a long getter into a variable 
without copying it (because it may be a big struct), your only 
way is to store it as a pointer:

----
struct Matrix {
     float[16] values= [
         1, 0, 0, 0,
         0, 1, 0, 0,
         0, 0, 1, 0,
         0, 0, 0, 1
     ];
}

struct Test {
private:
     Matrix _matrix;

public:
     ref const(Matrix) getCurrentModelViewMatrix() const pure 
nothrow {
         return _matrix;
     }
}

void main() {
     Test t;

     const(Matrix)* m = &t.getCurrentModelViewMatrix(); // 
currently
}
----

But IMO it would be a lot nicer if I could store the reference 
like this:
----
ref const(Matrix) m = t.getCurrentModelViewMatrix(); // nicer
----

[Of course the name is exaggerated for the purpose of 
demonstration.]

May this be worth of an enhancement request? Or was this already 
rejected?
And, no, I want no mutable references such as C++.