{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":".ok_or(MirLowerError::LangItemNotFound(trait_lang_item))?;"}]}
            .ok_or(MirLowerError::LangItemNotFound(trait_lang_item))?;
            .method_by_name(&trait_method_name)
        let deref_fn_op = Operand::const_zst(