First part of new ICData infrastructure: use a wrapper object instead of an array.

runtime/vm/code_patcher.h

 // Copyright (c) 2011, 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.
 // Class for patching compiled code.
 
 #ifndef VM_CODE_PATCHER_H_
 #define VM_CODE_PATCHER_H_
 
 #include "vm/allocation.h"
 
 namespace dart {
 
 // Forward declaration.
 class Array;
 class Code;
 class ExternalLabel;
 class Function;
-class RawArray;
+class RawICData;
 class String;
 
 class CodePatcher : public AllStatic {
  public:
   // Dart static calls have a distinct, machine-dependent code pattern.
 
   // Patch static call to the new target.
   static void PatchStaticCallAt(uword addr, uword new_target_address);
 
   // Patch instance call to the new target.
@@ skipping 18 matching lines @@
                               Function* function,
                               uword* target);
 
   // Get instance call information.
   static void GetInstanceCallAt(uword return_address,
                                 String* function_name,
                                 int* num_arguments,
                                 int* num_named_arguments,
                                 uword* target);
 
-  static RawArray* GetInstanceCallIcDataAt(uword return_address);
-
-  static void SetInstanceCallIcDataAt(uword return_address,
-                                      const Array& ic_data);
+  static RawICData* GetInstanceCallIcDataAt(uword return_address);
 
   static intptr_t InstanceCallSizeInBytes();
 };
 
 }  // namespace dart
 
 #endif  // VM_CODE_PATCHER_H_