[builtins] Drop the special MathRandomRaw.

src/js/collection.js

 // Copyright 2012 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();
 
 // -------------------------------------------------------------------
 // Imports
 
 var GlobalMap = global.Map;
 var GlobalObject = global.Object;
 var GlobalSet = global.Set;
 var hashCodeSymbol = utils.ImportNow("hash_code_symbol");
-var IntRandom;
+var MathRandom;
 var MakeTypeError;
 var MapIterator;
 var NumberIsNaN;
 var SetIterator;
 var speciesSymbol = utils.ImportNow("species_symbol");
 var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol");
 
 utils.Import(function(from) {
-  IntRandom = from.IntRandom;
+  MathRandom = from.MathRandom;
   MakeTypeError = from.MakeTypeError;
   MapIterator = from.MapIterator;
   NumberIsNaN = from.NumberIsNaN;
   SetIterator = from.SetIterator;
 });
 
 // -------------------------------------------------------------------
 
 function HashToEntry(table, hash, numBuckets) {
   var bucket = ORDERED_HASH_TABLE_HASH_TO_BUCKET(hash, numBuckets);
@@ skipping 69 matching lines @@
     return hash;
   }
   return %GenericHash(key);
 }
 %SetForceInlineFlag(GetExistingHash);
 
 
 function GetHash(key) {
   var hash = GetExistingHash(key);
   if (IS_UNDEFINED(hash)) {
-    hash = IntRandom() | 0;
+    hash = (MathRandom() * 0x40000000) | 0;
     if (hash === 0) hash = 1;
     SET_PRIVATE(key, hashCodeSymbol, hash);
   }
   return hash;
 }
 %SetForceInlineFlag(GetHash);
 
 
 // -------------------------------------------------------------------
 // Harmony Set
@@ skipping 358 matching lines @@
   "set_has", SetHas,
   "set_delete", SetDelete,
 ]);
 
 utils.Export(function(to) {
   to.GetExistingHash = GetExistingHash;
   to.GetHash = GetHash;
 });
 
 })