Fix bogus assert in HeapIterator.

src/spaces.cc

 // Copyright 2011 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.
 
 #include "src/v8.h"
 
 #include "src/base/platform/platform.h"
 #include "src/full-codegen.h"
 #include "src/macro-assembler.h"
 #include "src/mark-compact.h"
@@ skipping 40 matching lines @@
          owner == page->heap()->old_data_space() ||
          owner == page->heap()->map_space() ||
          owner == page->heap()->cell_space() ||
          owner == page->heap()->property_cell_space() ||
          owner == page->heap()->code_space());
   Initialize(reinterpret_cast<PagedSpace*>(owner),
              page->area_start(),
              page->area_end(),
              kOnePageOnly,
              size_func);
-  ASSERT(page->WasSweptPrecisely());
+  ASSERT(page->WasSweptPrecisely() || page->SweepingCompleted());
 }
 
 
 void HeapObjectIterator::Initialize(PagedSpace* space,
                                     Address cur, Address end,
                                     HeapObjectIterator::PageMode mode,
                                     HeapObjectCallback size_f) {
   // Check that we actually can iterate this space.
   ASSERT(space->swept_precisely());
 
@@ skipping 3080 matching lines @@
     object->ShortPrint();
     PrintF("\n");
   }
   printf(" --------------------------------------\n");
   printf(" Marked: %x, LiveCount: %x\n", mark_size, LiveBytes());
 }
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal