Upload Kmake

deps/v8/test/mjsunit/regress/regress-crbug-706642.js

@@ -0,0 +1,38 @@
+// Copyright 2017 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
+
+class A extends Object {
+  constructor(arg) {
+    super();
+    superclass_counter++;
+    if (superclass_counter === 3) {
+      return 1;
+    }
+  }
+}
+
+class B extends A {
+  constructor() {
+    let x = super(123);
+    return x.a;
+  }
+}
+
+var superclass_counter = 0;
+var observer = new Proxy(A, {
+  get(target, property, receiver) {
+    if (property === 'prototype') {
+      %DeoptimizeFunction(B);
+    }
+    return Reflect.get(target, property, receiver);
+  }
+});
+
+%PrepareFunctionForOptimization(B);
+Reflect.construct(B, [], observer);
+Reflect.construct(B, [], observer);
+%OptimizeFunctionOnNextCall(B);
+assertThrows(() => Reflect.construct(B, [], observer), TypeError);