Allow eval and arguments as property names

test/mjsunit/harmony/method-name-eval-arguments.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-object-literals
+
+(function TestSloppyMode() {
+  var o = {
+    eval() {
+      return 1;
+    },
+    arguments() {
+      return 2;
+    },
+  };
+
+  assertEquals(1, o.eval());
+  assertEquals(2, o.arguments());
+})();
+
+(function TestStrictMode() {
+  'use strict';
+
+  var o = {
+    eval() {
+      return 1;
+    },
+    arguments() {
+      return 2;
+    },
+  };
+
+  assertEquals(1, o.eval());
+  assertEquals(2, o.arguments());
+})();