mod M {
    enum A
    {
        A,
    }

    struct B
    {
        b: i32,
    }

    // For empty enums and structs, the brace remains on the same line.
    enum C {}

    struct D {}

    enum A<T> where T: Copy {
        A,
    }

    struct B<T> where T: Copy {
        b: i32,
    }

    // For empty enums and structs, the brace remains on the same line.
    enum C<T> where T: Copy {}

    struct D<T> where T: Copy {}
}