[Math] implement Math.random as TFJ builtin.

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 MathRandom;
+var MathRandom = global.Math.random;
 var MapIterator;
 var SetIterator;
 var speciesSymbol = utils.ImportNow("species_symbol");
 var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol");
 
 utils.Import(function(from) {
-  MathRandom = from.MathRandom;
   MapIterator = from.MapIterator;
   SetIterator = from.SetIterator;
 });
 
 // -------------------------------------------------------------------
 
 function HashToEntry(table, hash, numBuckets) {
   var bucket = ORDERED_HASH_TABLE_HASH_TO_BUCKET(hash, numBuckets);
   return ORDERED_HASH_TABLE_BUCKET_AT(table, bucket);
 }
@@ skipping 446 matching lines @@
   "set_has", SetHas,
   "set_delete", SetDelete,
 ]);
 
 utils.Export(function(to) {
   to.GetExistingHash = GetExistingHash;
   to.GetHash = GetHash;
 });
 
 })