Fix dartbug.com/17261

runtime/vm/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_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 724 matching lines @@
 
   RawLibrary* library() const { return raw_ptr()->library_; }
   void set_library(const Library& value) const;
 
   // The type parameters (and their bounds) are specified as an array of
   // TypeParameter.
   RawTypeArguments* type_parameters() const {
       return raw_ptr()->type_parameters_;
   }
   void set_type_parameters(const TypeArguments& value) const;
-  intptr_t NumTypeParameters() const;
+  intptr_t NumTypeParameters(Isolate* isolate) const;
+  intptr_t NumTypeParameters() const {
+    return NumTypeParameters(Isolate::Current());
+  }
   static intptr_t type_parameters_offset() {
     return OFFSET_OF(RawClass, type_parameters_);
   }
 
   // Return a TypeParameter if the type_name is a type parameter of this class.
   // Return null otherwise.
   RawTypeParameter* LookupTypeParameter(const String& type_name) const;
 
   // The type argument vector is flattened and includes the type arguments of
   // the super class.
@@ skipping 5909 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_