Switch RegularExpression from YARR to V8

Source/bindings/v8/V8PerIsolateData.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 124 matching lines @@
     void clearShouldCollectGarbageSoon() { m_shouldCollectGarbageSoon = false; }
     bool shouldCollectGarbageSoon() const { return m_shouldCollectGarbageSoon; }
 
     bool hasPrivateTemplate(WrapperWorldType, void* privatePointer);
     v8::Persistent<v8::FunctionTemplate> privateTemplate(WrapperWorldType, void* privatePointer, v8::InvocationCallback, v8::Handle<v8::Value> data, v8::Handle<v8::Signature>, int length = 0);
 
     v8::Persistent<v8::FunctionTemplate> rawTemplate(WrapperTypeInfo*, WrapperWorldType);
 
     bool hasInstance(WrapperTypeInfo*, v8::Handle<v8::Value>, WrapperWorldType);
 
+    v8::Local<v8::Context> ensureRegexContext();
+
 private:
     explicit V8PerIsolateData(v8::Isolate*);
     ~V8PerIsolateData();
     static v8::Handle<v8::Value> constructorOfToString(const v8::Arguments&);
 
     v8::Isolate* m_isolate;
     TemplateMap m_rawTemplatesForMainWorld;
     TemplateMap m_rawTemplatesForNonMainWorld;
     TemplateMap m_templatesForMainWorld;
     TemplateMap m_templatesForNonMainWorld;
     ScopedPersistent<v8::FunctionTemplate> m_toStringTemplate;
     v8::Persistent<v8::FunctionTemplate> m_lazyEventListenerToStringTemplate;
     OwnPtr<StringCache> m_stringCache;
     OwnPtr<IntegerCache> m_integerCache;
     ScopedPersistent<v8::Value> m_v8Null;
 
     Vector<DOMDataStore*> m_domDataList;
     DOMDataStore* m_workerDomDataStore;
 
     OwnPtr<V8HiddenPropertyName> m_hiddenPropertyName;
     ScopedPersistent<v8::Value> m_liveRoot;
-    ScopedPersistent<v8::Context> m_auxiliaryContext;
+    ScopedPersistent<v8::Context> m_regexContext;
 
     bool m_constructorMode;
     friend class ConstructorMode;
 
     int m_recursionLevel;
 
 #ifndef NDEBUG
     int m_internalScriptRecursionLevel;
 #endif
     OwnPtr<GCEventData> m_gcEventData;
     bool m_shouldCollectGarbageSoon;
 };
 
 } // namespace WebCore
 
 #endif // V8PerIsolateData_h