Update to ES2015 == semantics for Symbol/SIMD wrappers

test/mjsunit/harmony/simd.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-simd --harmony-tostring  --harmony-reflect
 // Flags: --allow-natives-syntax --expose-natives-as natives --noalways-opt
 
 function lanesForType(typeName) {
   // The lane count follows the first 'x' in the type name, which begins with
   // 'float', 'int', or 'bool'.
@@ skipping 319 matching lines @@
   var instance = createInstance(type);
 
   // Every SIMD value should equal itself, and non-strictly equal its wrapper.
   assertSame(instance, instance)
   assertEquals(instance, instance)
   assertTrue(Object.is(instance, instance))
   assertTrue(instance === instance)
   assertTrue(instance == instance)
   assertFalse(instance === Object(instance))
   assertFalse(Object(instance) === instance)
-  assertFalse(instance == Object(instance))
-  assertFalse(Object(instance) == instance)
+  assertTrue(instance == Object(instance))
+  assertTrue(Object(instance) == instance)
   assertTrue(instance === instance.valueOf())
   assertTrue(instance.valueOf() === instance)
   assertTrue(instance == instance.valueOf())
   assertTrue(instance.valueOf() == instance)
   assertFalse(Object(instance) === Object(instance))
   assertEquals(Object(instance).valueOf(), Object(instance).valueOf())
 
   function notEqual(other) {
     assertFalse(instance === other)
     assertFalse(other === instance)
@@ skipping 259 matching lines @@
   assertSame(Object.getPrototypeOf(SIMD), Object.prototype);
   assertSame(SIMD + "", "[object SIMD]");
   // The SIMD object is mutable.
   SIMD.foo = "foo";
   assertSame(SIMD.foo, "foo");
   delete SIMD.foo;
   delete SIMD.Bool8x16;
   assertSame(SIMD.Bool8x16, undefined);
 }
 TestSIMDObject()