[base] Move hashmap allocator to a field

src/crankshaft/hydrogen-bce.cc

 // Copyright 2013 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.
 
 #include "src/crankshaft/hydrogen-bce.h"
 
 namespace v8 {
 namespace internal {
 
 
@@ skipping 298 matching lines @@
 
 
 BoundsCheckTable::BoundsCheckTable(Zone* zone)
     : ZoneHashMap(BoundsCheckKeyMatch, ZoneHashMap::kDefaultHashMapCapacity,
                   ZoneAllocationPolicy(zone)) { }
 
 
 BoundsCheckBbData** BoundsCheckTable::LookupOrInsert(BoundsCheckKey* key,
                                                      Zone* zone) {
   return reinterpret_cast<BoundsCheckBbData**>(
-      &(ZoneHashMap::LookupOrInsert(key, key->Hash(),
-                                    ZoneAllocationPolicy(zone))->value));
+      &(ZoneHashMap::LookupOrInsert(key, key->Hash())->value));
 }
 
 
 void BoundsCheckTable::Insert(BoundsCheckKey* key,
                               BoundsCheckBbData* data,
                               Zone* zone) {
-  ZoneHashMap::LookupOrInsert(key, key->Hash(), ZoneAllocationPolicy(zone))
-      ->value = data;
+  ZoneHashMap::LookupOrInsert(key, key->Hash())->value = data;
 }
 
 
 void BoundsCheckTable::Delete(BoundsCheckKey* key) {
   Remove(key, key->Hash());
 }
 
 
 class HBoundsCheckEliminationState {
  public:
@@ skipping 129 matching lines @@
       table_.Insert(data->Key(), data->FatherInDominatorTree(), zone());
     } else {
       table_.Delete(data->Key());
     }
     data = data->NextInBasicBlock();
   }
 }
 
 }  // namespace internal
 }  // namespace v8