The original phrasing was correct. It forbids uses of `allow(C)` within whatever item the `forbid(C)` attribute is placed on. I don't know if changing this to "item" instead of "entity" makes sense, because I'm not sure it's possible to place a `#[forbid(C)]` (and if it is possible, if it's also possible to subsequently place an `#[allow(C)]` inside the non-item).