how to use shared keyword in 2.063 version?

[Andrey]

Hello!

I'm trying to use following code:
<======================================>
//...

class A
{
        private
        {
                int m_someVar = 10;
        }

        public
        {
                this()
                {
                }
        }
}


int main(string[] args)
{
        shared A a = null;
        a = new shared(A)(); // error.

        return 0;
}
<======================================>

And on compile time, the compiler says "Error: non-shared method 
main.A.this is not callable using a shared object".
How can I use an objects as shared, which classes were not 
defined with "synchronized" or "shared" keyword?


Thanks.