[SAB] Implement SharedArrayBuffer.prototype.slice

test/mjsunit/harmony/sharedarraybuffer.js

 // 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
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@@ skipping 52 matching lines @@
 
 function TestByteLengthNotWritable() {
   var sab = new SharedArrayBuffer(1024);
   assertSame(1024, sab.byteLength);
 
   assertThrows(function() { "use strict"; sab.byteLength = 42; }, TypeError);
 }
 
 TestByteLengthNotWritable();
 
-function TestArrayBufferNoSlice() {
-  var sab = new SharedArrayBuffer(10);
-  assertEquals(undefined, sab.slice);
-}
-
-TestArrayBufferNoSlice();
-
 // Typed arrays using SharedArrayBuffers
 
 // TODO(binji): how many of these tests are necessary if there are no new
 // TypedArray types?
 
 function MakeSharedTypedArray(constr, numElements) {
   var sab = new SharedArrayBuffer(constr.BYTES_PER_ELEMENT * numElements);
   return new constr(sab);
 }
 
@@ skipping 493 matching lines @@
 var desc = Object.getOwnPropertyDescriptor(ArrayBuffer.prototype, 'byteLength');
 s = new SharedArrayBuffer(10);
 Object.defineProperty(s, 'byteLength', desc);
 assertThrows(function() {s.byteLength}, TypeError);
 
 desc = Object.getOwnPropertyDescriptor(SharedArrayBuffer.prototype,
   'byteLength');
 var a = new ArrayBuffer(10);
 Object.defineProperty(a, 'byteLength', desc);
 assertThrows(function() {a.byteLength}, TypeError);