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diff --git a/js/src/tests/test262/built-ins/Function/proto-from-ctor-realm.js b/js/src/tests/test262/built-ins/Function/proto-from-ctor-realm.js
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+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-p1-p2-pn-body
+description: Default [[Prototype]] value derived from realm of the newTarget
+info: |
+ [...]
+ 5. Return ? CreateDynamicFunction(C, NewTarget, "normal", args).
+
+ 19.2.1.1.1 Runtime Semantics: CreateDynamicFunction
+
+ [...]
+ 2. If kind is "normal", then
+ [...]
+ c. Let fallbackProto be "%FunctionPrototype%".
+ [...]
+ 22. Let proto be ? GetPrototypeFromConstructor(newTarget, fallbackProto).
+ [...]
+
+ 9.1.14 GetPrototypeFromConstructor
+
+ [...]
+ 3. Let proto be ? Get(constructor, "prototype").
+ 4. If Type(proto) is not Object, then
+ a. Let realm be ? GetFunctionRealm(constructor).
+ b. Let proto be realm's intrinsic object named intrinsicDefaultProto.
+ [...]
+features: [cross-realm, Reflect]
+---*/
+
+var other = $262.createRealm().global;
+var C = new other.Function();
+C.prototype = null;
+
+var o = Reflect.construct(Function, [], C);
+
+assert.sameValue(Object.getPrototypeOf(o), other.Function.prototype);
+
+reportCompare(0, 0);