{"ast_node_type":"import","tokens":[{"end":88,"kind":"keyword","start":0,"text":"//"}]}
    // Encode <name> for use in u<length><name>[I<element-type1..element-typeN>E], where
fn encode_ty_name(tcx: TyCtxt<'_>, def_id: DefId) -> String {
    // <element-type> is <subst>, using v0's <path> without v0's extended form of paths: