[es6] Partially implement Reflect.getPrototypeOf.

test/mjsunit/harmony/reflect.js

 // Copyright 2015 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: --harmony-reflect
 
 // TODO(neis): Test with proxies.
 
 
 
@@ skipping 213 matching lines @@
     let proto = tgt.__proto__;
     tgt.__proto__ = { get foo() {return this.bla} };
     assertEquals(true, Reflect.deleteProperty(tgt, "foo"));
     tgt.__proto__ = proto;
   }
 })();
 
 
 
 ////////////////////////////////////////////////////////////////////////////////
+// Reflect.getPrototypeOf
+
+
+(function testReflectGetPrototypeOfArity() {
+  assertEquals(1, Reflect.getPrototypeOf.length);
+})();
+
+
+(function testReflectDeletePropertyOnNonObject() {
+  assertThrows(function() { Reflect.getPrototypeOf(); }, TypeError);
+  assertThrows(function() { Reflect.getPrototypeOf(42); }, TypeError);
+  assertThrows(function() { Reflect.getPrototypeOf(null); }, TypeError);
+})();
+
+
+// See reflect-get-prototype-of.js for further tests.
+
+
+
+////////////////////////////////////////////////////////////////////////////////
 // Reflect.isExtensible
 
 
 (function testReflectIsExtensibleArity() {
   assertEquals(1, Reflect.isExtensible.length);
 })();
 
 
 (function testReflectIsExtensibleOnNonObject() {
   assertThrows(function() { Reflect.isExtensible(); }, TypeError);
@@ skipping 48 matching lines @@
   assertThrows(function() { Reflect.preventExtensions(); }, TypeError);
   assertThrows(function() { Reflect.preventExtensions(42); }, TypeError);
   assertThrows(function() { Reflect.preventExtensions(null); }, TypeError);
 })();
 
 
 // See reflect-prevent-extensions.js for further tests.
 
 // TODO(neis): Need proxies to test the situation where
 // [[preventExtensions]] returns false.