{"ast_node_type":"other","tokens":[{"end":14,"kind":"keyword","start":0,"text":".."}]}
            ..
            kind: ConstArgKind::Anon(&AnonConst { hir_id: anon_hir_id, .. }),
        }) if anon_hir_id == hir_id => const_arg_anon_type_of(icx, arg_hir_id, span),