Allow invalidation and recompilation of instance allocation stubs. Requested in order to implement…

runtime/vm/object.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_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 1113 matching lines @@
   }
   void set_num_native_fields(uint16_t value) const {
     raw_ptr()->num_native_fields_ = value;
   }
 
   RawCode* allocation_stub() const {
     return raw_ptr()->allocation_stub_;
   }
   void set_allocation_stub(const Code& value) const;
 
+  void DisableAllocationStub() const;
+
   RawArray* constants() const;
 
   intptr_t FindInvocationDispatcherFunctionIndex(const Function& needle) const;
   RawFunction* InvocationDispatcherFunctionFromIndex(intptr_t idx) const;
 
   RawFunction* GetInvocationDispatcher(const String& target_name,
                                        const Array& args_desc,
                                        RawFunction::Kind kind) const;
 
   void Finalize() const;
@@ skipping 6308 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_