{"ast_node_type":"variable","tokens":[{"end":43,"kind":"keyword","start":0,"text":"let"}]}
    let owner = hir_body.id().hir_id.owner;
    // FIXME(cjgillot) Stop hashing HIR manually here.
    tcx.hir_owner_nodes(owner).opt_hash_including_bodies.unwrap().to_smaller_hash().as_u64()