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

runtime/vm/raw_object_snapshot.cc

 // 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.
 
 #include "vm/bigint_operations.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/snapshot.h"
 #include "vm/visitor.h"
 
@@ skipping 1055 matching lines @@
 }
 
 
 void RawICData::WriteTo(SnapshotWriter* writer,
                         intptr_t object_id,
                         Snapshot::Kind kind) {
   UNREACHABLE();
 }
 
 
+RawSubtypeTestCache* SubtypeTestCache::ReadFrom(SnapshotReader* reader,
+                                                intptr_t object_id,
+                                                intptr_t tags,
+                                                Snapshot::Kind kind) {
+  UNREACHABLE();
+  return NULL;
+}
+
+
+void RawSubtypeTestCache::WriteTo(SnapshotWriter* writer,
+                                  intptr_t object_id,
+                                  Snapshot::Kind kind) {
+  UNREACHABLE();
+}
+
+
 RawError* Error::ReadFrom(SnapshotReader* reader,
                           intptr_t object_id,
                           intptr_t tags,
                           Snapshot::Kind kind) {
   UNREACHABLE();
   return Error::null();
 }
 
 
 void RawError::WriteTo(SnapshotWriter* writer,
@@ skipping 888 matching lines @@
   writer->Write<RawObject*>(ptr()->num_bracket_expressions_);
   writer->WriteObject(ptr()->pattern_);
   writer->WriteIntptrValue(ptr()->type_);
   writer->WriteIntptrValue(ptr()->flags_);
 
   // Do not write out the data part which is native.
 }
 
 
 }  // namespace dart