IDL compiler: sync Python to r166698 (and add test case)

Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.h

Index: Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.h
diff --git a/Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.h b/Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.h
index 6810eb9a133ae736ed89be19c3a2de6c92e89b12..e209926aa4cfd7ff088ac5f8b8a20cf1a9232fdd 100644
--- a/Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.h
+++ b/Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.h
@@ -33,6 +33,7 @@
 #ifndef V8TestInterfaceWillBeGarbageCollected_h
 #define V8TestInterfaceWillBeGarbageCollected_h
 
+#include "V8EventTarget.h"
 #include "bindings/tests/idls/TestInterfaceWillBeGarbageCollected.h"
 #include "bindings/v8/V8Binding.h"
 #include "bindings/v8/V8DOMWrapper.h"
@@ -51,17 +52,19 @@ public:
     }
     static const WrapperTypeInfo wrapperTypeInfo;
     static void derefObject(void*);
+    static EventTarget* toEventTarget(v8::Handle<v8::Object>);
     static void constructorCallback(const v8::FunctionCallbackInfo<v8::Value>&);
-    static const int persistentHandleIndex = v8DefaultWrapperInternalFieldCount + 0;
-    static const int internalFieldCount = v8DefaultWrapperInternalFieldCount + 1;
+    static const int eventListenerCacheIndex = v8DefaultWrapperInternalFieldCount + 0;
+    static const int persistentHandleIndex = v8DefaultWrapperInternalFieldCount + 1;
+    static const int internalFieldCount = v8DefaultWrapperInternalFieldCount + 2;
     static inline void* toInternalPointer(TestInterfaceWillBeGarbageCollected* impl)
     {
-        return impl;
+        return V8EventTarget::toInternalPointer(impl);
     }
 
     static inline TestInterfaceWillBeGarbageCollected* fromInternalPointer(void* object)
     {
-        return static_cast<TestInterfaceWillBeGarbageCollected*>(object);
+        return static_cast<TestInterfaceWillBeGarbageCollected*>(V8EventTarget::fromInternalPointer(object));
     }
     static void installPerContextEnabledProperties(v8::Handle<v8::Object>, TestInterfaceWillBeGarbageCollected*, v8::Isolate*) { }
     static void installPerContextEnabledMethods(v8::Handle<v8::Object>, v8::Isolate*) { }