message: Disable Add/AddN rewrite (temp).
diff: @@ -58,7 +58,7 @@ class ArithmeticOptimizer : public GraphOptimizer {
  // TODO(ezhulenev): flag do disable TrySimplifyAndReplaceUses in tests.
  // Remove when all optimizers will be migrated to separate stages.
  bool enable_try_simplify_and_replace = true;
  - bool combine_add_to_addn = true;
  + bool combine_add_to_addn = false;
  bool hoist_common_factor_out_of_aggregation = true;
  bool remove_inverse_transpose = true;
  bool remove_redundant_bitcast = true;
  