Possible bug of "missing matching more than one candidate" in overload set

[user1234]

What do you think about that ?

```d
alias Seq(T...) = T;

void f()()
{
     static assert(0);
}
void f(T...)()
{
}

void main()
{
     f!(Seq!())();
}
```

> /tmp/temp_7FE084898C90.d(5,5): Error: static assert:  `0` is 
> false

Shouldn't the variadic version be selected instead ? Note that 
the program compiles when you remove one or the other `f`.