Remove the dependency of Zone on Isolate

test/cctest/compiler/test-js-typed-lowering.cc

Index: test/cctest/compiler/test-js-typed-lowering.cc
diff --git a/test/cctest/compiler/test-js-typed-lowering.cc b/test/cctest/compiler/test-js-typed-lowering.cc
index 38867866ef518691dcdfe98f111e40b1c46f00e1..614bd686d97f49311043349a200ae9bfa0d9861c 100644
--- a/test/cctest/compiler/test-js-typed-lowering.cc
+++ b/test/cctest/compiler/test-js-typed-lowering.cc
@@ -25,7 +25,7 @@ class JSTypedLoweringTester : public HandleAndZoneScope {
         simplified(main_zone()),
         common(main_zone()),
         graph(main_zone()),
-        typer(&graph, MaybeHandle<Context>()),
+        typer(main_isolate(), &graph, MaybeHandle<Context>()),
         context_node(NULL) {
     graph.SetStart(graph.NewNode(common.Start(num_parameters)));
     graph.SetEnd(graph.NewNode(common.End()));
@@ -75,7 +75,7 @@ class JSTypedLoweringTester : public HandleAndZoneScope {
   }
 
   Node* reduce(Node* node) {
-    JSGraph jsgraph(&graph, &common, &javascript, &machine);
+    JSGraph jsgraph(main_isolate(), &graph, &common, &javascript, &machine);
     JSTypedLowering reducer(&jsgraph, main_zone());
     Reduction reduction = reducer.Reduce(node);
     if (reduction.Changed()) return reduction.replacement();