message: clean up observed_world_test
diff: #include "modules/world/objects/agent.hpp"
  #include "modules/world/observed_world.hpp"
  #include "modules/world/evaluation/evaluator_collision_agents.hpp"
  +#include "modules/world/tests/dummy_road_corridor.hpp"
  #include "modules/models/tests/make_test_world.hpp"
  using namespace modules::models::dynamic;
  @@ -33,6 +34,7 @@ using namespace modules::world::evaluation;
  using namespace modules::world::prediction;
  using StateDefinition::VEL_POSITION;
  using modules::models::tests::make_test_world;
  +using modules::world::tests::DummyRoadCorridor;
  TEST(observed_world, agent_in_front) {
  DefaultParams params;
  @@ -81,7 +83,7 @@ TEST(observed_world, agent_in_front) {
  inner.add_point(Point2d(2, 0));
  inner.add_point(Point2d(10, 0));
  - RoadCorridorPtr road_corridor(new modules::models::tests::DummyRoadCorridor(center, outer, inner));
  + RoadCorridorPtr road_corridor(new DummyRoadCorridor(center, outer, inner));
  agent1->set_road_corridor(road_corridor);
  agent2->set_road_corridor(road_corridor);
  