{"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"//"}]}
    // `-Zcoverage-options=discard-all-spans-in-codegen` to force it to occur.
    // It's hard for tests to trigger this organically, so instead we set
    let discard_all = tcx.sess.coverage_options().discard_all_spans_in_codegen;