{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"WellKnownTrait::FnPtr"}]}
        WellKnownTrait::FnPtr => LangItem::FnPtrTrait,
        WellKnownTrait::Pointee => LangItem::PointeeTrait,
        WellKnownTrait::Future => LangItem::Future,