Upload Kmake

deps/v8/test/mjsunit/regress/regress-crbug-1195331.js

@@ -0,0 +1,36 @@
+// Copyright 2021 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
+
+let o1 = { a: 1, b: 0 };
+let o2 = { a: 2, b: 0 };
+assertTrue(%HaveSameMap(o1, o2));
+assertTrue(%HasOwnConstDataProperty(o1, "a"));
+assertTrue(%HasOwnConstDataProperty(o1, "b"));
+
+Object.defineProperty(o1, "b", {
+  value: 4.2, enumerable: true, configurable: true, writable: true,
+});
+assertFalse(%HaveSameMap(o1, o2));
+assertTrue(%HasOwnConstDataProperty(o1, "a"));
+assertFalse(%HasOwnConstDataProperty(o1, "b"));
+assertTrue(%HasOwnConstDataProperty(o2, "a"));
+assertTrue(%HasOwnConstDataProperty(o2, "b"));
+
+let o3 = { a: "foo", b: 0 };
+assertFalse(%HaveSameMap(o2, o3));
+assertTrue(%HasOwnConstDataProperty(o3, "a"));
+assertFalse(%HasOwnConstDataProperty(o3, "b"));
+
+Object.defineProperty(o2, "a", {
+  value:2, enumerable: false, configurable: true, writable: true,
+});
+assertTrue(%HasOwnConstDataProperty(o1, "a"));
+assertFalse(%HasOwnConstDataProperty(o1, "b"));
+assertTrue(%HasOwnConstDataProperty(o3, "a"));
+assertFalse(%HasOwnConstDataProperty(o3, "b"));
+
+assertFalse(%HasOwnConstDataProperty(o2, "a"));
+assertTrue(%HasOwnConstDataProperty(o2, "b"));