Another example of how AI is bad, bug fix for 20875

[user1234]

see https://github.com/dlang/dmd/issues/20875

```d
struct S
{
     auto front() {}
}

void test()
{
     S res;
     ulong x;
     typeof(res.front)(x);
}
```

the problem is not about arguments. The problem is that the 
sub-expression is not callable. I.E the error message shoud be 
the same as when you unfortunatetly, completly exhausted after a 
12 hours shift, write

```d
void main()
{
     alias FT = void(int);
     FT(0);
}
```

the problem is that the coder wrote a call on a type. If that 
type implements a static opCall then "allrighty" otherwise it's 
not ok to output

> expected 0 arguments, not 1 for non-variadic fun...

It's a bad fix.