Upload Kmake

deps/v8/test/mjsunit/regress/regress-4521.js

@@ -0,0 +1,21 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+"use strict";
+
+class B {
+  foo() { return 23 }
+}
+
+class C extends B {
+  bar() { return super[%DeoptimizeFunction(C.prototype.bar), "foo"]() }
+}
+%PrepareFunctionForOptimization(C.prototype.bar);
+
+assertEquals(23, new C().bar());
+assertEquals(23, new C().bar());
+%OptimizeFunctionOnNextCall(C.prototype.bar);
+assertEquals(23, new C().bar());