[heap] Let caller figure out target space for evacuation when compacting.

src/heap/mark-compact.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HEAP_MARK_COMPACT_H_
 #define V8_HEAP_MARK_COMPACT_H_
 
 #include "src/base/bits.h"
 #include "src/heap/spaces.h"
 
@@ skipping 863 matching lines @@
   // If we are not compacting the heap, we simply sweep the spaces except
   // for the large object space, clearing mark bits and adding unmarked
   // regions to each space's free list.
   void SweepSpaces();
 
   int DiscoverAndEvacuateBlackObjectsOnPage(NewSpace* new_space,
                                             NewSpacePage* p);
 
   void EvacuateNewSpace();
 
-  void EvacuateLiveObjectsFromPage(Page* p);
+  void EvacuateLiveObjectsFromPage(Page* p, PagedSpace* to_space);

[Hannes Payer (out of office), 2015/09/15 10:38:42]

Let's rename it to target_space to avoid confusion with the to_space in
SemiSpace.

[Michael Lippautz, 2015/09/15 10:41:09]

Done.

 
   void EvacuatePages();
 
   void EvacuatePagesInParallel();
 
   void WaitUntilCompactionCompleted();
 
   void EvacuateNewSpaceAndCandidates();
 
   void ReleaseEvacuationCandidates();
@@ skipping 97 matching lines @@
  private:
   MarkCompactCollector* collector_;
 };
 
 
 const char* AllocationSpaceName(AllocationSpace space);
 }
 }  // namespace v8::internal
 
 #endif  // V8_HEAP_MARK_COMPACT_H_