Remove the dependency of Zone on Isolate

test/cctest/compiler/test-changes-lowering.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 <limits>
 
 #include "src/compiler/change-lowering.h"
 #include "src/compiler/control-builders.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-properties-inl.h"
@@ skipping 15 matching lines @@
 
 using namespace v8::internal;
 using namespace v8::internal::compiler;
 
 template <typename ReturnType>
 class ChangesLoweringTester : public GraphBuilderTester<ReturnType> {
  public:
   explicit ChangesLoweringTester(MachineType p0 = kMachNone)
       : GraphBuilderTester<ReturnType>(p0),
         javascript(this->zone()),
-        jsgraph(this->graph(), this->common(), &javascript, this->machine()),
+        jsgraph(this->isolate(), this->graph(), this->common(), &javascript,
+                this->machine()),
         function(Handle<JSFunction>::null()) {}
 
   JSOperatorBuilder javascript;
   JSGraph jsgraph;
   Handle<JSFunction> function;
 
   Node* start() { return this->graph()->start(); }
 
   template <typename T>
   T* CallWithPotentialGC() {
@@ skipping 73 matching lines @@
                                        this->start(), this->start());
     Node* end = this->graph()->NewNode(this->common()->End(), ret);
     this->graph()->SetEnd(end);
     LowerChange(change);
   }
 
   void LowerChange(Node* change) {
     // Run the graph reducer with changes lowering on a single node.
     CompilationInfo info(this->isolate(), this->zone());
     Linkage linkage(this->zone(), &info);
-    Typer typer(this->graph(), info.context());
+    Typer typer(this->isolate(), this->graph(), info.context());
     typer.Run();
     ChangeLowering change_lowering(&jsgraph, &linkage);
     SelectLowering select_lowering(this->graph(), this->common());
     GraphReducer reducer(this->graph(), this->zone());
     reducer.AddReducer(&change_lowering);
     reducer.AddReducer(&select_lowering);
     reducer.ReduceNode(change);
     Verifier::Run(this->graph(), Verifier::UNTYPED);
   }
 
@@ skipping 247 matching lines @@
 
         input = *i;
         Object* result = t.CallWithPotentialGC<Object>();
         t.CheckNumber(input, result);
       }
     }
   }
 }
 
 #endif  // V8_TURBOFAN_BACKEND