Remove the dependency of Zone on Isolate

test/cctest/compiler/test-control-reducer.cc

 // Copyright 2014 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/v8.h"
 #include "test/cctest/cctest.h"
 
 #include "src/base/bits.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/control-reducer.h"
@@ skipping 46 matching lines @@
 }
 
 
 // A helper for all tests dealing with ControlTester.
 class ControlReducerTester : HandleAndZoneScope {
  public:
   ControlReducerTester()
       : isolate(main_isolate()),
         common(main_zone()),
         graph(main_zone()),
-        jsgraph(&graph, &common, NULL, NULL),
+        jsgraph(main_isolate(), &graph, &common, NULL, NULL),
         start(graph.NewNode(common.Start(1))),
         end(graph.NewNode(common.End(), start)),
         p0(graph.NewNode(common.Parameter(0), start)),
         zero(jsgraph.Int32Constant(0)),
         one(jsgraph.OneConstant()),
         half(jsgraph.Constant(0.5)),
         self(graph.NewNode(common.Int32Constant(0xaabbccdd))),
         dead(graph.NewNode(common.Dead())) {
     graph.SetEnd(end);
     graph.SetStart(start);
@@ skipping 1589 matching lines @@
 
   Node* ret = R.Return(d1.phi, R.start, d1.merge);
 
   R.ReduceGraph();  // d1 gets folded true.
 
   CheckInputs(ret, y2, R.start, R.start);
   CheckDeadDiamond(d1);
   CheckDeadDiamond(d2);
   CheckDeadDiamond(d3);
 }