Support for type dynamic in VM

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 99 matching lines @@
   // Illegal class id.
   kIllegalCid = 0,
 
   // List of Ids for predefined classes.
 #define DEFINE_OBJECT_KIND(clazz)                                              \
   k##clazz##Cid,
 CLASS_LIST(DEFINE_OBJECT_KIND)
 #undef DEFINE_OBJECT_KIND
 
   // The following entries do not describe a predefined class, but instead
-  // are class indexes for pre-allocated instance (Null, Dynamic and Void).
+  // are class indexes for pre-allocated instance (Null, dynamic and Void).
   kNullCid,
   kDynamicCid,
   kVoidCid,
 
   // The following entry does not describe a real class, but instead it is an
   // id which is used to identify free list elements in the heap.
   kFreeListElement,
 
   kNumPredefinedCids,
 };
@@ skipping 1475 matching lines @@
          kExternalUint64ArrayCid == kByteArrayCid + 18 &&
          kExternalFloat32ArrayCid == kByteArrayCid + 19 &&
          kExternalFloat64ArrayCid == kByteArrayCid + 20 &&
          kStacktraceCid == kByteArrayCid + 21);
   return (index >= kByteArrayCid && index <= kExternalFloat64ArrayCid);
 }
 
 }  // namespace dart
 
 #endif  // VM_RAW_OBJECT_H_