ref struct Ok
{
    public ref int Ref;

    public Ok(ref int x)
    {
        Ref = ref x; // OK
    }
}

ref struct Error(ref int x)
{
    public ref int Ref = ref x; // CS9077. Isn't this a bug?
}

ref struct ForReference([UnscopedRef] ref int x)
{
    public ref int Ref = ref x; // OK

    public void M1(ref int x)
    {
        Ref = ref x; // CS9077. This is correct.
    }

    public void M2([UnscopedRef] ref int x)
    {
        Ref = ref x; // OK
    }
}