Remove the dependency of Zone on Isolate

src/hydrogen-bch.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/hydrogen-bch.h"
 
 namespace v8 {
 namespace internal {
 
 /*
@@ skipping 235 matching lines @@
           current_check->upper_limit() == upper_constant_limit;
       counters()->bounds_checks_eliminated()->Increment();
       current_check->check()->set_skip_check();
     }
 
     // Choose the appropriate limit.
     Zone* zone = graph()->zone();
     HValue* context = graph()->GetInvalidContext();
     HValue* limit = data->limit();
     if (has_upper_constant_limit) {
-      HConstant* new_limit = HConstant::New(zone, context,
+      HConstant* new_limit = HConstant::New(graph()->isolate(), zone, context,
                                             upper_constant_limit);
       new_limit->InsertBefore(pre_header->end());
       limit = new_limit;
     }
 
     // If necessary, redefine the limit in the preheader.
     if (limit->IsInteger32Constant() &&
         limit->block() != pre_header &&
         !limit->block()->Dominates(pre_header)) {
-      HConstant* new_limit = HConstant::New(zone, context,
+      HConstant* new_limit = HConstant::New(graph()->isolate(), zone, context,
                                             limit->GetInteger32Constant());
       new_limit->InsertBefore(pre_header->end());
       limit = new_limit;
     }
 
     // Do the hoisting.
     HBoundsCheck* hoisted_check = HBoundsCheck::New(
-        zone, context, limit, check->check()->length());
+        graph()->isolate(), zone, context, limit, check->check()->length());
     hoisted_check->InsertBefore(pre_header->end());
     hoisted_check->set_allow_equality(true);
     counters()->bounds_checks_hoisted()->Increment();
   }
 
   void CollectInductionVariableData(HBasicBlock* bb) {
     bool additional_limit = false;
 
     for (int i = 0; i < bb->phis()->length(); i++) {
       HPhi* phi = bb->phis()->at(i);
@@ skipping 84 matching lines @@
 
 void HBoundsCheckHoistingPhase::HoistRedundantBoundsChecks() {
   InductionVariableBlocksTable table(graph());
   table.CollectInductionVariableData(graph()->entry_block());
   for (int i = 0; i < graph()->blocks()->length(); i++) {
     table.EliminateRedundantBoundsChecks(graph()->blocks()->at(i));
   }
 }
 
 } }  // namespace v8::internal