Method debugString

bolt/common/memory/tests/MockSharedArbitratorTest.cpp:2122–2132

    uint64_t spillCapacityLowerBound;
    std::vector<TaskData> tasks;
    std::string debugString() const {
      std::stringstream ss;
      for (const auto& task : tasks) {
        ss << task.debugString() << ", ";
      }
      return fmt::format(
          "testName {}, shrinkBytes {}, tasks [{}]",
          testName,
          shrinkBytes,
          ss.str());
    }
  };

  std::vector<TestData> testSettings = {