deps: update V8 to 7.0.276.20

PR-URL: https://github.com/nodejs/node/pull/22754
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/deps/v8/test/mjsunit/array-prototype-indexof.js b/deps/v8/test/mjsunit/array-prototype-indexof.js
new file mode 100644
index 0000000000..ca639f4da2
--- /dev/null
+++ b/deps/v8/test/mjsunit/array-prototype-indexof.js
@@ -0,0 +1,36 @@
+// Copyright 2018 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.
+
+// indexOf
+
+/* Test behaviors when the prototype has elements */
+
+(function() {
+  const iarr = [,3];
+
+  function indexOf(arr, val) {
+    return arr.indexOf(val);
+  }
+
+  assertEquals(-1, indexOf(iarr, 2));
+  assertEquals(1, indexOf(iarr, 3));
+
+  iarr.__proto__ = [2];
+  assertEquals(0, indexOf(iarr, 2));
+})();
+
+// This pollutes the Array prototype, so we should not run more tests
+// in the same environment after this.
+(function () {
+  var array = [,];
+
+  function indexOf(val) {
+    return array.indexOf(val);
+  }
+
+  assertEquals(indexOf(6), -1);
+
+  array.__proto__.push(6);
+  assertEquals(indexOf(6), 0);
+})();