Support indexed setter generation

Source/core/storage/Storage.cpp

Index: Source/core/storage/Storage.cpp
diff --git a/Source/core/storage/Storage.cpp b/Source/core/storage/Storage.cpp
index fe7955bf14dabd28b21741fd0dca13040d1f63fc..350dafc09b02b78072300dd4c6a59ba87670c98d 100644
--- a/Source/core/storage/Storage.cpp
+++ b/Source/core/storage/Storage.cpp
@@ -73,10 +73,15 @@ String Storage::anonymousNamedGetter(const AtomicString& name, ExceptionCode& ec
     return result;
 }
 
-bool Storage::anonymousNamedSetter(const AtomicString& name, const AtomicString& value, ExceptionCode& ec)
+bool Storage::anonymousNamedSetter(const AtomicString& name, const AtomicString& value, bool isValueNull, bool isValueUndefined, ExceptionCode& ec)
 {
     setItem(name, value, ec);
     return true;
 }
 
+bool Storage::anonymousIndexedSetter(unsigned index, const AtomicString& value, bool isValueNull, bool isValueUndefined, ExceptionCode& ec)
+{
+    return anonymousNamedSetter(String::number(index), value, isValueNull, isValueUndefined, ec);
+}
+
 }