{"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"//"}]}
        // We are not doing recursive interning, so we don't currently support provenance.
    if let Some(_) = intern_shallow(ecx, alloc_id, Mutability::Not, None).unwrap().next() {
        // (If this assertion ever triggers, we should just implement a