message: fix TV build..
diff: @@ -295,11 +295,8 @@ public:
  auto inst = make_unique<ExtractValue>(*ty, value_name(i), *val);
  - for (auto &idx : i.indices) {
  - auto op = get_operand(idx);
  - if (!op)
  - return error(i);
  - inst->addIdx(*op);
  + for (auto idx : i.indices()) {
  + inst->addIdx(idx);
  }
  RETURN_IDENTIFIER(move(inst));
  