Reuse empty StoreBufferBlocks.

runtime/vm/dart.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/dart.h"
 
 #include "vm/code_observers.h"
 #include "vm/cpu.h"
 #include "vm/dart_api_state.h"
 #include "vm/dart_entry.h"
@@ skipping 85 matching lines @@
   Thread::InitOnce();
   Isolate::InitOnce();
   PortMap::InitOnce();
   FreeListElement::InitOnce();
   Api::InitOnce();
   CodeObservers::InitOnce();
   ThreadInterrupter::InitOnce();
   Profiler::InitOnce();
   SemiSpace::InitOnce();
   Metric::InitOnce();
+  StoreBuffer::InitOnce();
 
 #if defined(USING_SIMULATOR)
   Simulator::InitOnce();
 #endif
   // Create the read-only handles area.
   ASSERT(predefined_handles_ == NULL);
   predefined_handles_ = new ReadOnlyHandles();
   // Create the VM isolate and finish the VM initialization.
   ASSERT(thread_pool_ == NULL);
   thread_pool_ = new ThreadPool();
@@ skipping 240 matching lines @@
   return predefined_handles_->handles_.AllocateScopedHandle();
 }
 
 
 bool Dart::IsReadOnlyHandle(uword address) {
   ASSERT(predefined_handles_ != NULL);
   return predefined_handles_->handles_.IsValidScopedHandle(address);
 }
 
 }  // namespace dart