Remove the dependency of Zone on Isolate

test/unittests/compiler/simplified-operator-reducer-unittest.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/compiler/access-builder.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/compiler/simplified-operator.h"
 #include "src/compiler/simplified-operator-reducer.h"
 #include "src/conversions.h"
@@ skipping 12 matching lines @@
 class SimplifiedOperatorReducerTest : public TypedGraphTest {
  public:
   explicit SimplifiedOperatorReducerTest(int num_parameters = 1)
       : TypedGraphTest(num_parameters), simplified_(zone()) {}
   ~SimplifiedOperatorReducerTest() OVERRIDE {}
 
  protected:
   Reduction Reduce(Node* node) {
     MachineOperatorBuilder machine(zone());
     JSOperatorBuilder javascript(zone());
-    JSGraph jsgraph(graph(), common(), &javascript, &machine);
+    JSGraph jsgraph(isolate(), graph(), common(), &javascript, &machine);
     SimplifiedOperatorReducer reducer(&jsgraph);
     return reducer.Reduce(node);
   }
 
   SimplifiedOperatorBuilder* simplified() { return &simplified_; }
 
  private:
   SimplifiedOperatorBuilder simplified_;
 };
 
@@ skipping 385 matching lines @@
         Reduce(graph()->NewNode(simplified()->ChangeUint32ToTagged(),
                                 Int32Constant(bit_cast<int32_t>(n))));
     ASSERT_TRUE(reduction.Changed());
     EXPECT_THAT(reduction.replacement(), IsNumberConstant(BitEq(FastUI2D(n))));
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8