Create fewer local v8::TryCatch objects in generated bindings code

Source/bindings/tests/results/V8TestSpecialOperations.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file has been auto-generated by code_generator_v8.py. DO NOT MODIFY!
 
 #include "config.h"
 #include "V8TestSpecialOperations.h"
 
 #include "RuntimeEnabledFeatures.h"
@@ skipping 33 matching lines @@
 
 template <typename T> void V8_USE(T) { }
 
 static void namedItemMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwArityTypeErrorForMethod("namedItem", "TestSpecialOperations", 1, info.Length(), info.GetIsolate());
         return;
     }
     TestSpecialOperations* impl = V8TestSpecialOperations::toNative(info.Holder());
-    TOSTRING_VOID(V8StringResource<>, name, info[0]);
+    V8StringResource<> name;
+    {
+        v8::TryCatch block;
+        TOSTRING_VOID_NO_DECL(name, info[0]);
+    }
     bool result0Enabled = false;
     RefPtr<Node> result0;
     bool result1Enabled = false;
     RefPtr<NodeList> result1;
     impl->getItem(name, result0Enabled, result0, result1Enabled, result1);
     if (result0Enabled) {
         v8SetReturnValue(info, result0.release());
         return;
     }
     if (result1Enabled) {
@@ skipping 178 matching lines @@
     fromInternalPointer(object)->deref();
 }
 
 template<>
 v8::Handle<v8::Value> toV8NoInline(TestSpecialOperations* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     return toV8(impl, creationContext, isolate);
 }
 
 } // namespace WebCore