Add the typed data classes to the do not extend list.

runtime/vm/class_finalizer.cc

 // Copyright (c) 2013, 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/class_finalizer.h"
 
 #include "vm/flags.h"
 #include "vm/heap.h"
 #include "vm/isolate.h"
 #include "vm/longjump.h"
@@ skipping 1525 matching lines @@
       case kUint32ArrayCid:
       case kExternalUint32ArrayCid:
       case kInt64ArrayCid:
       case kExternalInt64ArrayCid:
       case kUint64ArrayCid:
       case kExternalUint64ArrayCid:
       case kFloat32ArrayCid:
       case kExternalFloat32ArrayCid:
       case kFloat64ArrayCid:
       case kExternalFloat64ArrayCid:
+#define DO_NOT_EXTEND_TYPED_DATA_CLASSES(clazz)                               \
+      case kTypedData##clazz##Cid:                                            \
+      case kExternalTypedData##clazz##Cid:
+      CLASS_LIST_TYPED_DATA(DO_NOT_EXTEND_TYPED_DATA_CLASSES)
+#undef DO_NOT_EXTEND_TYPED_DATA_CLASSES
       case kDartFunctionCid:
       case kWeakPropertyCid:
         is_error = true;
         break;
       default: {
         // Special case: classes for which we don't have a known class id.
         if (super_type.IsDoubleType() ||
             super_type.IsIntType() ||
             super_type.IsStringType()) {
           is_error = true;
@@ skipping 233 matching lines @@
 void ClassFinalizer::ReportError(const char* format, ...) {
   va_list args;
   va_start(args, format);
   const Error& error = Error::Handle(
       Parser::FormatError(Script::Handle(), -1, "Error", format, args));
   va_end(args);
   ReportError(error);
 }
 
 }  // namespace dart