Update test case TS093_Param_notypedefined_indexing_Userdefined

This test case is invalid. Update it. 
Apart from the readability of this embedded codes, the following changes achieve one thing that I think might be ideal: it is more likely for a variable in .NET to be initialized to ```0```, so if we could make ```a = 1234``` and validate this value, then it will avoid the possibility of hiding real problem away (where ```a``` is initialized to ```0``` for some other reasons):

```cs
class A
{
    a = 1234;
}

class B
{
    b : A;
    constructor B(x : A, y : A)
    {
        b = x;
    }
}

def CreateLine(points: var[])
{
    return = B.B(points[0], points[1]);
}

test = CreateLine({ A.A(), A.A() });
z = test.b.a;
```