Make subtype test stubs isolate-specific.

runtime/vm/class_table.h

 // 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.
 
 #ifndef VM_CLASS_TABLE_H_
 #define VM_CLASS_TABLE_H_
 
 #include "platform/assert.h"
 #include "vm/globals.h"
 
@@ skipping 144 matching lines @@
   void UpdateAllocatedOld(intptr_t cid, intptr_t size);
 
   // Called whenever a old GC occurs.
   void ResetCountersOld();
   // Called whenever a new GC occurs.
   void ResetCountersNew();
   // Called immediately after a new GC.
   void UpdatePromoted();
 
   // Used by the generated code.
+  uword TableAddress() {
+    return reinterpret_cast<uword>(&table_);
+  }
+
+  // Used by the generated code.
   uword PredefinedClassHeapStatsTableAddress() {
     return reinterpret_cast<uword>(predefined_class_heap_stats_table_);
   }
 
   // Used by generated code.
   uword ClassStatsTableAddress() {
     return reinterpret_cast<uword>(&class_heap_stats_table_);
   }
 
   ClassHeapStats* StatsWithUpdatedSize(intptr_t cid);
@@ skipping 22 matching lines @@
   ClassHeapStats* PreliminaryStatsAt(intptr_t cid);
   void UpdateLiveOld(intptr_t cid, intptr_t size);
   void UpdateLiveNew(intptr_t cid, intptr_t size);
 
   DISALLOW_COPY_AND_ASSIGN(ClassTable);
 };
 
 }  // namespace dart
 
 #endif  // VM_CLASS_TABLE_H_