Make subtype test stubs isolate-specific.

runtime/vm/isolate.h

 // 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.
 
 #ifndef VM_ISOLATE_H_
 #define VM_ISOLATE_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/base_isolate.h"
@@ skipping 128 matching lines @@
 
   StoreBuffer* store_buffer() { return &store_buffer_; }
   static intptr_t store_buffer_offset() {
     return OFFSET_OF(Isolate, store_buffer_);
   }
 
   ClassTable* class_table() { return &class_table_; }
   static intptr_t class_table_offset() {
     return OFFSET_OF(Isolate, class_table_);
   }
+  uword ClassTableAddress() {
+    return reinterpret_cast<uword>(this)
+        + Isolate::class_table_offset()

[Vyacheslav Egorov (Google), 2014/09/26 13:09:43]

just add TableAddress() getter to ClassTable that is defined as &table_

there is already ClassStatsTableAddress there.

Then you can do isolate->class_table()->TableAddress().

[Florian Schneider, 2014/09/26 14:05:02]

Done.

+        + ClassTable::table_offset();
+  }
 
   CHA* cha() const { return cha_; }
   void set_cha(CHA* value) { cha_ = value; }
 
   MegamorphicCacheTable* megamorphic_cache_table() {
     return &megamorphic_cache_table_;
   }
 
   Dart_MessageNotifyCallback message_notify_callback() const {
     return message_notify_callback_;
@@ skipping 696 matching lines @@
   char* exception_callback_name_;
   uint8_t* serialized_args_;
   intptr_t serialized_args_len_;
   uint8_t* serialized_message_;
   intptr_t serialized_message_len_;
 };
 
 }  // namespace dart
 
 #endif  // VM_ISOLATE_H_