{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"debug!(\"start"}]}
    debug!("start resolving rvalue scopes, def_id={def_id:?}");
    let mut rvalue_scopes = RvalueScopes::new();
    debug!("rvalue_scope: rvalue_candidates={:?}", scope_tree.rvalue_candidates);