{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"ExportedSymbol::NonGeneric(def_id)"}]}
        ExportedSymbol::NonGeneric(def_id) => Some(Instance::mono(tcx, def_id)),
        }
        ExportedSymbol::Generic(def_id, args) => Some(Instance::new_raw(def_id, args)),