Using SubtypeTestCache object instead of an array, that way we do not need to patch and can communi…

runtime/vm/raw_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_RAW_OBJECT_H_
 #define VM_RAW_OBJECT_H_
 
 #include "platform/assert.h"
 #include "vm/globals.h"
 #include "vm/token.h"
@@ skipping 23 matching lines @@
   V(LibraryPrefix)                                                             \
   V(Code)                                                                      \
   V(Instructions)                                                              \
   V(PcDescriptors)                                                             \
   V(Stackmap)                                                                  \
   V(LocalVarDescriptors)                                                       \
   V(ExceptionHandlers)                                                         \
   V(Context)                                                                   \
   V(ContextScope)                                                              \
   V(ICData)                                                                    \
+  V(SubtypeTestCache)                                                          \
   V(Error)                                                                     \
     V(ApiError)                                                                \
     V(LanguageError)                                                           \
     V(UnhandledException)                                                      \
     V(UnwindError)                                                             \
   V(Instance)                                                                  \
     V(Number)                                                                  \
       V(Integer)                                                               \
         V(Smi)                                                                 \
         V(Mint)                                                                \
@@ skipping 776 matching lines @@
   RawString* target_name_;  // Name of target function.
   RawArray* ic_data_;  // Contains test classes and target function.
   RawObject** to() {
     return reinterpret_cast<RawObject**>(&ptr()->ic_data_);
   }
   intptr_t id_;  // Parser node id corresponding to this IC.
   intptr_t num_args_tested_;  // Number of arguments tested in IC.
 };
 
 
+class RawSubtypeTestCache : public RawObject {
+  RAW_HEAP_OBJECT_IMPLEMENTATION(SubtypeTestCache);
+  RawArray* cache_;
+};
+
+
+
 class RawError : public RawObject {
   RAW_HEAP_OBJECT_IMPLEMENTATION(Error);
 };
 
 
 class RawApiError : public RawError {
   RAW_HEAP_OBJECT_IMPLEMENTATION(ApiError);
 
   RawObject** from() {
     return reinterpret_cast<RawObject**>(&ptr()->message_);
@@ skipping 349 matching lines @@
   intptr_t type_;  // Uninitialized, simple or complex.
   intptr_t flags_;  // Represents global/local, case insensitive, multiline.
 
   // Variable length data follows here.
   uint8_t data_[0];
 };
 
 }  // namespace dart
 
 #endif  // VM_RAW_OBJECT_H_