[SAB] Handle non-numerics in Atomics.isLockFree

src/js/harmony-atomics.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.
 
 (function(global, utils) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
@@ skipping 83 matching lines @@
 }
 
 function AtomicsExchangeJS(ia, index, value) {
   CheckSharedIntegerTypedArray(ia);
   index = ValidateIndex(index, %_TypedArrayGetLength(ia));
   value = TO_NUMBER(value);
   return %_AtomicsExchange(ia, index, value);
 }
 
 function AtomicsIsLockFreeJS(size) {
-  return %_AtomicsIsLockFree(size);
+  return %_AtomicsIsLockFree(TO_INTEGER(size));
 }
 
 function AtomicsWaitJS(ia, index, value, timeout) {
   CheckSharedInteger32TypedArray(ia);
   index = ValidateIndex(index, %_TypedArrayGetLength(ia));
   if (IS_UNDEFINED(timeout)) {
     timeout = INFINITY;
   } else {
     timeout = TO_NUMBER(timeout);
     if (NUMBER_IS_NAN(timeout)) {
@@ skipping 29 matching lines @@
   "and", AtomicsAndJS,
   "or", AtomicsOrJS,
   "xor", AtomicsXorJS,
   "exchange", AtomicsExchangeJS,
   "isLockFree", AtomicsIsLockFreeJS,
   "wait", AtomicsWaitJS,
   "wake", AtomicsWakeJS,
 ]);
 
 })