Upload Kmake

deps/v8/test/mjsunit/regress/regress-crbug-944865.js

@@ -0,0 +1,16 @@
+// Copyright 2019 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
+
+function foo() {
+  const r = {e: NaN, g: undefined, c: undefined};
+  const u = {__proto__: {}, e: new Set(), g: 0, c: undefined};
+  return r;
+};
+%PrepareFunctionForOptimization(foo);
+foo();
+%OptimizeFunctionOnNextCall(foo);
+const o = foo();
+Object.defineProperty(o, 'c', {value: 42});