use rustc::hir;
use rustc::lint::*;
+use rustc::{declare_lint, lint_array};
use rustc::ty;
use syntax::ast;
use syntax::attr;
hir::ImplItemKind::Const(..) => "an associated constant",
hir::ImplItemKind::Method(..) => "a method",
hir::ImplItemKind::Type(_) => "an associated type",
+ hir::ImplItemKind::Existential(_) => "an existential type",
};
self.check_missing_docs_attrs(cx, &impl_item.attrs, impl_item.span, desc);
}