Function rustc_lint::non_local_def::self_ty_kind_for_diagnostic

fn self_ty_kind_for_diagnostic(ty: &Ty<'_>, tcx: TyCtxt<'_>) -> (Span, String)

Compute the Span and visual representation for the Self we want to point at; It follows part of the actual logic of non-local, and if possible return the least amount possible for the span and representation.