Don't filter store buffer after sweeping.

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index c29224fffb68a5b8329ed28579ae737f6d75678e..4cc0d3e9d79114b2e55441b6395b1ecacd69deaa 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -6661,7 +6661,7 @@ void Heap::QueueMemoryChunkForFree(MemoryChunk* chunk) {
 }
 
 
-void Heap::FreeQueuedChunks() {
+void Heap::FilterStoreBufferEntriesOnAboutToBeFreedPages() {
   if (chunks_queued_for_free_ == NULL) return;
   MemoryChunk* next;
   MemoryChunk* chunk;
@@ -6671,6 +6671,12 @@ void Heap::FreeQueuedChunks() {
   }
   isolate_->heap()->store_buffer()->Compact();
   isolate_->heap()->store_buffer()->Filter(MemoryChunk::ABOUT_TO_BE_FREED);
+}
+
+
+void Heap::FreeQueuedChunks() {
+  MemoryChunk* next;
+  MemoryChunk* chunk;
   for (chunk = chunks_queued_for_free_; chunk != NULL; chunk = next) {
     next = chunk->next_chunk();
     isolate_->memory_allocator()->Free(chunk);