src/hotspot/share/gc/parallel/psPromotionManager.hpp

8224663: Parallel GC: Use WorkGang (5: ScavengeRootsTask)

 class PSOldGen;
 class ParCompactionManager;
 
 class PSPromotionManager {
   friend class PSScavenge;
+  friend class ScavengeRootsTask;
   friend class PSRefProcTaskExecutor;
  private:
   static PaddedEnd<PSPromotionManager>* _manager_array;
   static OopStarTaskQueueSet*           _stack_array_depth;
   static PreservedMarksSet*             _preserved_marks_set;