Switch RegularExpression from YARR to V8

Source/bindings/v8/V8PerIsolateData.cpp

Index: Source/bindings/v8/V8PerIsolateData.cpp
diff --git a/Source/bindings/v8/V8PerIsolateData.cpp b/Source/bindings/v8/V8PerIsolateData.cpp
index ad603a44bd2bfd1aaaa0cd45f0e192ef85c536e9..d9567ec4ff42cb88ae7ddf77e80ee009b2a8a551 100644
--- a/Source/bindings/v8/V8PerIsolateData.cpp
+++ b/Source/bindings/v8/V8PerIsolateData.cpp
@@ -121,7 +121,7 @@ void V8PerIsolateData::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) con
     info.ignoreMember(m_lazyEventListenerToStringTemplate);
     info.ignoreMember(m_v8Null);
     info.ignoreMember(m_liveRoot);
-    info.ignoreMember(m_auxiliaryContext);
+    info.ignoreMember(m_regexContext);
 }
 
 bool V8PerIsolateData::hasPrivateTemplate(WrapperWorldType currentWorldType, void* privatePointer)
@@ -156,6 +156,13 @@ v8::Persistent<v8::FunctionTemplate> V8PerIsolateData::rawTemplate(WrapperTypeIn
     return templ;
 }
 
+v8::Local<v8::Context> V8PerIsolateData::ensureRegexContext()
+{
+    if (m_regexContext.isEmpty())
+        m_regexContext.set(v8::Context::New());
+    return v8::Local<v8::Context>::New(m_regexContext.get());
+}
+
 bool V8PerIsolateData::hasInstance(WrapperTypeInfo* info, v8::Handle<v8::Value> value, WrapperWorldType currentWorldType)
 {
     TemplateMap& templates = rawTemplateMap(currentWorldType);