add use counters for __defineGetter__ failing

include/v8.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
@@ skipping 5674 matching lines @@
     kArrayProtectorDirtied = 24,
     kArraySpeciesModified = 25,
     kArrayPrototypeConstructorModified = 26,
     kArrayInstanceProtoModified = 27,
     kArrayInstanceConstructorModified = 28,
     kLegacyFunctionDeclaration = 29,
     kRegExpPrototypeSourceGetter = 30,
     kRegExpPrototypeOldFlagGetter = 31,
     kDecimalWithLeadingZeroInStrictMode = 32,
     kLegacyDateParser = 33,
+    kDefineGetterOrSetterWouldThrow = 34,
 
     // If you add new values here, you'll also need to update Chromium's:

[jochen (gone - plz use gerrit), 2016/07/19 12:35:24]

I want to draw your attention to this comment ^^^

     // UseCounter.h, V8PerIsolateData.cpp, histograms.xml
     kUseCounterFeatureCount  // This enum value must be last.
   };
 
   typedef void (*UseCounterCallback)(Isolate* isolate,
                                      UseCounterFeature feature);
 
 
   /**
    * Creates a new isolate.  Does not change the currently entered
@@ skipping 3166 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // INCLUDE_V8_H_