Bug?

[Jack Applegame]

And the first example still doesn't compile:

```
struct Range(R) {
	import std.array : empty, front, popFront;
     R range;
     bool empty() const { return range.empty; }
     auto front() const { return range.front; }
     void popFront() { range.popFront(); }
}

void main() {
     auto rng = Range!string("1234");
     assert(rng.front == '1');
}
```

onlineapp.d(11): Error: void has no value
onlineapp.d(11): Error: incompatible types for (rng.front) == 
('1'): void and char
```