PhantomPinned should be ignored just like PhantomData<T>

[kkoning]

cbindgen already ignores any item of type PhantomData. It should also ignore anything that's PhantomPinned for the same reason.

This looks like it's just as simple as adding a one-liner in src/bindgen/ir/ty.rs at line 401 extending the predicate to include PhantomPinned. Or, at least, that worked for me. But perhaps it also should be added to some tests?

[emilio]

Yeah, that seems fine. I'd totally take that one-liner with at least a test tweaked (there aren't that many test that use PhantomData so just tweaking them to also use PhantomPinned seems good enough).

Thanks!