Remove the dependency of Zone on Isolate

test/cctest/compiler/test-codegen-deopt.cc

Index: test/cctest/compiler/test-codegen-deopt.cc
diff --git a/test/cctest/compiler/test-codegen-deopt.cc b/test/cctest/compiler/test-codegen-deopt.cc
index 56afe7b6dd399df2049bbc43f3dbbb17c63cba65..e017cd6c4ac6163bc2ba1bf87e1cc54055302b94 100644
--- a/test/cctest/compiler/test-codegen-deopt.cc
+++ b/test/cctest/compiler/test-codegen-deopt.cc
@@ -72,6 +72,7 @@ class DeoptCodegenTester {
   }
 
   Zone* zone() { return scope_->main_zone(); }
+  Isolate* isolate() { return scope_->main_isolate(); }
 
   HandleAndZoneScope* scope_;
   Handle<JSFunction> function;
@@ -102,7 +103,7 @@ class TrivialDeoptCodegenTester : public DeoptCodegenTester {
     // }
 
     CSignature1<Object*, Object*> sig;
-    RawMachineAssembler m(graph, &sig);
+    RawMachineAssembler m(isolate(), graph, &sig);
 
     Handle<JSFunction> deopt_function =
         NewFunction("function deopt() { %DeoptimizeFunction(foo); }; deopt");
@@ -220,7 +221,7 @@ class TrivialRuntimeDeoptCodegenTester : public DeoptCodegenTester {
     // }
 
     CSignature1<Object*, Object*> sig;
-    RawMachineAssembler m(graph, &sig);
+    RawMachineAssembler m(isolate(), graph, &sig);
 
     Unique<HeapObject> this_fun_constant =
         Unique<HeapObject>::CreateUninitialized(function);