These tests would either be written as 

```rust
enum Foo { Bar(), Baz() } //~ ERROR nullary enum variants
//~^ ERROR nullary enum variants
```

or, preferably (to keep the error as precise as possible)

```rust
enum Foo {
    Bar(),  //~ ERROR nullary enum variants
    Baz()  //~ ERROR nullary enum variants
}
```
and similarly below.