{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"//"}]}
            // Add a label to the Span containing just the type of the const
        let trait_c_span = trait_ct.def_id.as_local().map(|trait_ct_def_id| {
            let (ty, _) = tcx.hir_expect_trait_item(trait_ct_def_id).expect_const();