Ignore evacuation canditate pages when verifying spaces.

src/spaces.h

 // Copyright 2011 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 1188 matching lines @@
   // skipping the special garbage section of which there is one per space.
   // Returns NULL when the iteration has ended.
   inline HeapObject* Next() {
     do {
       HeapObject* next_obj = FromCurrentPage();
       if (next_obj != NULL) return next_obj;
     } while (AdvanceToNextPage());
     return NULL;
   }
 
+  // Advance to the next object, skipping free spaces, evacuation canditates,
+  // and other fillers and skipping the special garbage section of which 
+  // there is one per space. Returns NULL when the iteration has ended.
+  inline HeapObject* NextIgnoreEvacuationCandidates() {
+    do {
+      if (cur_addr_ != 0 &&
+          !Page::FromAddress(cur_addr_ - 1)->IsEvacuationCandidate()) {
+        HeapObject* next_obj = FromCurrentPage();
+        if (next_obj != NULL) return next_obj;
+      }
+    } while (AdvanceToNextPage());
+    return NULL;
+  }
+
   virtual HeapObject* next_object() {
     return Next();
   }
 
  private:
   enum PageMode { kOnePageOnly, kAllPagesInSpace };
 
   Address cur_addr_;  // Current iteration point.
   Address cur_end_;   // End iteration point.
   HeapObjectCallback size_func_;  // Size function or NULL.
@@ skipping 1604 matching lines @@
   }
   // Must be small, since an iteration is used for lookup.
   static const int kMaxComments = 64;
 };
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SPACES_H_