Move the temporary private freelist closer to where it's used

src/mark-compact.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 698 matching lines @@
   void ClearMarkbits();
 
   bool abort_incremental_marking() const { return abort_incremental_marking_; }
 
   bool is_compacting() const { return compacting_; }
 
   MarkingParity marking_parity() { return marking_parity_; }
 
   // Concurrent and parallel sweeping support.
   void SweepInParallel(PagedSpace* space,
-                       FreeList* private_free_list,
                        FreeList* free_list);
 
   void WaitUntilSweepingCompleted();
 
   intptr_t StealMemoryFromSweeperThreads(PagedSpace* space);
 
   bool AreSweeperThreadsActivated();
 
   bool IsConcurrentSweepingInProgress();
 
@@ skipping 289 matching lines @@
  private:
   MarkCompactCollector* collector_;
 };
 
 
 const char* AllocationSpaceName(AllocationSpace space);
 
 } }  // namespace v8::internal
 
 #endif  // V8_MARK_COMPACT_H_