{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"//"}]}
    // We have to do an expensive reverse-lookup of the DepNode that
fn panic_on_forbidden_read<D: Deps>(data: &DepGraphData<D>, dep_node_index: DepNodeIndex) -> ! {
    // corresponds to `dep_node_index`, but that's OK since we are about