Add an ASSERT about cross-world wrapper leakage into ScriptValue

Source/bindings/v8/ScriptPromise.cpp

Index: Source/bindings/v8/ScriptPromise.cpp
diff --git a/Source/bindings/v8/ScriptPromise.cpp b/Source/bindings/v8/ScriptPromise.cpp
index be125f4d27e156ff83b9540be26d0a8997faea2f..11865ee4854c9fd76b572354a85ebfa60b06eca2 100644
--- a/Source/bindings/v8/ScriptPromise.cpp
+++ b/Source/bindings/v8/ScriptPromise.cpp
@@ -94,9 +94,9 @@ ScriptPromise ScriptPromise::then(PassOwnPtr<ScriptFunction> onFulfilled, PassOw
     return ScriptPromise(m_scriptState.get(), resultPromise);
 }
 
-ScriptPromise ScriptPromise::cast(const ScriptValue& value)
+ScriptPromise ScriptPromise::cast(ScriptState* scriptState, const ScriptValue& value)
 {
-    return ScriptPromise::cast(value.scriptState(), value.v8Value());
+    return ScriptPromise::cast(scriptState, value.v8Value());
 }
 
 ScriptPromise ScriptPromise::cast(ScriptState* scriptState, v8::Handle<v8::Value> value)
@@ -112,9 +112,9 @@ ScriptPromise ScriptPromise::cast(ScriptState* scriptState, v8::Handle<v8::Value
     return promise;
 }
 
-ScriptPromise ScriptPromise::reject(const ScriptValue& value)
+ScriptPromise ScriptPromise::reject(ScriptState* scriptState, const ScriptValue& value)
 {
-    return ScriptPromise::reject(value.scriptState(), value.v8Value());
+    return ScriptPromise::reject(scriptState, value.v8Value());
 }
 
 ScriptPromise ScriptPromise::reject(ScriptState* scriptState, v8::Handle<v8::Value> value)