Include Harmony Array/TypedArray methods unconditionally

test/mjsunit/es6/typedarray-reverse.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-arrays
-
 function ArrayMaker(x) {
   return x;
 }
 ArrayMaker.prototype = Array.prototype;
 
 var arrayConstructors = [
   Uint8Array,
   Int8Array,
   Uint16Array,
   Int16Array,
@@ skipping 30 matching lines @@
     // Array.reverse works on array-like objects
     var x = { length: 2, 1: 5 };
     a.reverse.call(x);
     assertEquals(2, x.length);
     assertFalse(Object.hasOwnProperty(x, '1'));
     assertEquals(5, x[0]);
   }
 
   assertEquals(0, a.reverse.length);
 }