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diff --git a/deps/v8/test/mjsunit/harmony/reflect-own-keys.js b/deps/v8/test/mjsunit/harmony/reflect-own-keys.js
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+// Copyright 2015 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This is adapted from mjsunit/object-get-own-property-names.js.
+
+// Flags: --harmony-reflect
+
+
+// Check simple cases.
+var obj = { a: 1, b: 2};
+var keys = Reflect.ownKeys(obj);
+assertEquals(2, keys.length);
+assertEquals("a", keys[0]);
+assertEquals("b", keys[1]);
+
+var obj = { a: function(){}, b: function(){} };
+var keys = Reflect.ownKeys(obj);
+assertEquals(2, keys.length);
+assertEquals("a", keys[0]);
+assertEquals("b", keys[1]);
+
+// Check slow case
+var obj = { a: 1, b: 2, c: 3 };
+delete obj.b;
+var keys = Reflect.ownKeys(obj)
+assertEquals(2, keys.length);
+assertEquals("a", keys[0]);
+assertEquals("c", keys[1]);
+
+// Check that non-enumerable properties are being returned.
+var keys = Reflect.ownKeys([1, 2]);
+assertEquals(3, keys.length);
+assertEquals("0", keys[0]);
+assertEquals("1", keys[1]);
+assertEquals("string", typeof keys[0]);
+assertEquals("string", typeof keys[1]);
+assertEquals("length", keys[2]);
+
+// Check that no proto properties are returned.
+var obj = { foo: "foo" };
+obj.__proto__ = { bar: "bar" };
+keys = Reflect.ownKeys(obj);
+assertEquals(1, keys.length);
+assertEquals("foo", keys[0]);
+
+// Check that getter properties are returned.
+var obj = {};
+obj.__defineGetter__("getter", function() {});
+keys = Reflect.ownKeys(obj);
+assertEquals(1, keys.length);
+assertEquals("getter", keys[0]);
+
+// Check that implementation does not access Array.prototype.
+var savedConcat = Array.prototype.concat;
+Array.prototype.concat = function() { return []; }
+keys = Reflect.ownKeys({0: 'foo', bar: 'baz'});
+assertEquals(2, keys.length);
+assertEquals('0', keys[0]);
+assertEquals('bar', keys[1]);
+assertSame(Array.prototype, keys.__proto__);
+Array.prototype.concat = savedConcat;
+
+assertThrows(function() { Reflect.ownKeys(4) }, TypeError);
+assertThrows(function() { Reflect.ownKeys("foo") }, TypeError);
+assertThrows(function() { Reflect.ownKeys(true) }, TypeError);
+
+assertEquals(Reflect.ownKeys(Object(4)), []);
+assertEquals(Reflect.ownKeys(Object("foo")), ["0", "1", "2", "length"]);
+assertEquals(Reflect.ownKeys(Object(true)), []);