FYI: Compile fixes when always using a local for method return value

Source/bindings/tests/results/V8TestTypedefs.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 "V8TestTypedefs.h"
 
 #include "bindings/core/v8/ExceptionState.h"
@@ skipping 165 matching lines @@
         throwMinimumArityTypeErrorForMethod("uLongLongMethodTestInterfaceEmptyTypeSequenceArg", "TestTypedefs", 1, info.Length(), info.GetIsolate());
         return;
     }
     TestTypedefs* impl = V8TestTypedefs::toNative(info.Holder());
     Vector<RefPtr<TestInterfaceEmpty> > testInterfaceEmptyTypeSequenceArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
         TONATIVE_VOID_INTERNAL(testInterfaceEmptyTypeSequenceArg, (toRefPtrNativeArray<TestInterfaceEmpty, V8TestInterfaceEmpty>(info[0], 1, info.GetIsolate())));
     }
-    v8SetReturnValue(info, static_cast<double>(impl->uLongLongMethodTestInterfaceEmptyTypeSequenceArg(testInterfaceEmptyTypeSequenceArg)));
+    unsigned long long result = impl->uLongLongMethodTestInterfaceEmptyTypeSequenceArg(testInterfaceEmptyTypeSequenceArg);
+    v8SetReturnValue(info, static_cast<double>(result));
 }
 
 static void uLongLongMethodTestInterfaceEmptyTypeSequenceArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestTypedefsV8Internal::uLongLongMethodTestInterfaceEmptyTypeSequenceArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void testInterfaceOrTestInterfaceEmptyMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
@@ skipping 28 matching lines @@
         throwMinimumArityTypeErrorForMethod("arrayOfStringsMethodArrayOfStringsArg", "TestTypedefs", 1, info.Length(), info.GetIsolate());
         return;
     }
     TestTypedefs* impl = V8TestTypedefs::toNative(info.Holder());
     Vector<String> arrayOfStringsArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
         TONATIVE_VOID_INTERNAL(arrayOfStringsArg, toNativeArray<String>(info[0], 1, info.GetIsolate()));
     }
-    v8SetReturnValue(info, v8Array(impl->arrayOfStringsMethodArrayOfStringsArg(arrayOfStringsArg), info.Holder(), info.GetIsolate()));
+    Vector<String> result = impl->arrayOfStringsMethodArrayOfStringsArg(arrayOfStringsArg);
+    v8SetReturnValue(info, v8Array(result, info.Holder(), info.GetIsolate()));
 }
 
 static void arrayOfStringsMethodArrayOfStringsArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestTypedefsV8Internal::arrayOfStringsMethodArrayOfStringsArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void stringArrayMethodStringArrayArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwMinimumArityTypeErrorForMethod("stringArrayMethodStringArrayArg", "TestTypedefs", 1, info.Length(), info.GetIsolate());
         return;
     }
     TestTypedefs* impl = V8TestTypedefs::toNative(info.Holder());
     Vector<String> stringArrayArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
         TONATIVE_VOID_INTERNAL(stringArrayArg, toNativeArray<String>(info[0], 1, info.GetIsolate()));
     }
-    v8SetReturnValue(info, v8Array(impl->stringArrayMethodStringArrayArg(stringArrayArg), info.Holder(), info.GetIsolate()));
+    Vector<String> result = impl->stringArrayMethodStringArrayArg(stringArrayArg);
+    v8SetReturnValue(info, v8Array(result, info.Holder(), info.GetIsolate()));
 }
 
 static void stringArrayMethodStringArrayArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestTypedefsV8Internal::stringArrayMethodStringArrayArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void constructor(const v8::FunctionCallbackInfo<v8::Value>& info)
@@ skipping 117 matching lines @@
     fromInternalPointer(object)->deref();
 }
 
 template<>
 v8::Handle<v8::Value> toV8NoInline(TestTypedefs* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     return toV8(impl, creationContext, isolate);
 }
 
 } // namespace WebCore