Make old-space heap stats safe for parallel marking.

runtime/vm/class_table.cc

 // Copyright (c) 2012, 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/class_table.h"
 #include "vm/flags.h"
 #include "vm/freelist.h"
 #include "vm/growable_array.h"
 #include "vm/heap.h"
 #include "vm/object.h"
@@ skipping 502 matching lines @@
 void ClassTable::ResetAllocationAccumulators() {
   for (intptr_t i = 1; i < top_; i++) {
     ClassHeapStats* stats = StatsWithUpdatedSize(i);
     if (stats != NULL) {
       stats->ResetAccumulator();
     }
   }
 }
 
 
-void ClassTable::UpdateLiveOld(intptr_t cid, intptr_t size) {
+void ClassTable::UpdateLiveOld(intptr_t cid, intptr_t size, intptr_t count) {
   ClassHeapStats* stats = PreliminaryStatsAt(cid);
   ASSERT(stats != NULL);
   ASSERT(size >= 0);
-  stats->post_gc.AddOld(size);
+  ASSERT(count >= 0);
+  stats->post_gc.AddOld(size, count);
 }
 
 
 void ClassTable::UpdateLiveNew(intptr_t cid, intptr_t size) {
   ClassHeapStats* stats = PreliminaryStatsAt(cid);
   ASSERT(stats != NULL);
   ASSERT(size >= 0);
   stats->post_gc.AddNew(size);
 }
 
 
 }  // namespace dart