message: tidy: fix side-effect assert
  Risk Level: Low
  Testing: CI
  Docs Changes: N/A
  Release Notes: N/A
diff: @@ -128,7 +128,8 @@ static int instance_count = 0;
  SimulatedTimeSystem::SimulatedTimeSystem()
  : monotonic_time_(MonotonicTime(std::chrono::seconds(0))),
  system_time_(real_time_source_.systemTime()), index_(0), pending_alarms_(0) {
  - ASSERT(++instance_count <= 1);
  + ++instance_count;
  + ASSERT(instance_count <= 1);
  }
  SimulatedTimeSystem::~SimulatedTimeSystem() { --instance_count; }
  