Make whether or not a Code object should be created by masm explicit

src/code-stubs-hydrogen.cc

 // Copyright 2012 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/code-stubs.h"
 
 #include "src/bailout-reason.h"
 #include "src/crankshaft/hydrogen.h"
 #include "src/crankshaft/lithium.h"
 #include "src/field-index.h"
@@ skipping 232 matching lines @@
 
   Stub* casted_stub() { return static_cast<Stub*>(stub()); }
 };
 
 
 Handle<Code> HydrogenCodeStub::GenerateLightweightMissCode(
     ExternalReference miss) {
   Factory* factory = isolate()->factory();
 
   // Generate the new code.
-  MacroAssembler masm(isolate(), NULL, 256);
+  MacroAssembler masm(isolate(), NULL, 256, true);
 
   {
     // Update the static counter each time a new code stub is generated.
     isolate()->counters()->code_stubs()->Increment();
 
     // Generate the code for the stub.
     masm.set_generating_stub(true);
     // TODO(yangguo): remove this once we can serialize IC stubs.
     masm.enable_serializer();
     NoCurrentFrameScope scope(&masm);
@@ skipping 2125 matching lines @@
   return Pop();
 }
 
 
 Handle<Code> KeyedLoadGenericStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 }  // namespace internal
 }  // namespace v8