{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"//"}]}
        // - The field storing the tag has a layout, which is very similar to `tag_layout` but
        //   For the return value, a cast to `discr_layout` is performed.
        //   may be a pointer. This is `tag_val.layout`; we just use it for sanity checks.