Flag for serialization when compiling code stubs if --serialize-toplevel.

test/cctest/test-serialize.cc

Index: test/cctest/test-serialize.cc
diff --git a/test/cctest/test-serialize.cc b/test/cctest/test-serialize.cc
index 2ecc75b1cb9eb22b1a5c0674799566d8b4239431..92483fe9a54713ff31be975879b312adbec1aeba 100644
--- a/test/cctest/test-serialize.cc
+++ b/test/cctest/test-serialize.cc
@@ -799,18 +799,19 @@ TEST(SerializeToplevelIsolates) {
   const char* source = "function f() { return 'abc'; }; f() + 'def'";
   v8::ScriptCompiler::CachedData* cache;
 
-  v8::Isolate* isolate = v8::Isolate::New();
+  v8::Isolate* isolate1 = v8::Isolate::New();
+  v8::Isolate* isolate2 = v8::Isolate::New();
   {
-    v8::Isolate::Scope iscope(isolate);
-    v8::HandleScope scope(isolate);
-    v8::Local<v8::Context> context = v8::Context::New(isolate);
+    v8::Isolate::Scope iscope(isolate1);
+    v8::HandleScope scope(isolate1);
+    v8::Local<v8::Context> context = v8::Context::New(isolate1);
     v8::Context::Scope context_scope(context);
 
     v8::Local<v8::String> source_str = v8_str(source);
     v8::ScriptOrigin origin(v8_str("test"));
     v8::ScriptCompiler::Source source(source_str, origin);
     v8::Local<v8::UnboundScript> script = v8::ScriptCompiler::CompileUnbound(
-        isolate, &source, v8::ScriptCompiler::kProduceCodeCache);
+        isolate1, &source, v8::ScriptCompiler::kProduceCodeCache);
     const v8::ScriptCompiler::CachedData* data = source.GetCachedData();
     // Persist cached data.
     uint8_t* buffer = NewArray<uint8_t>(data->length);
@@ -821,13 +822,12 @@ TEST(SerializeToplevelIsolates) {
     v8::Local<v8::Value> result = script->BindToCurrentContext()->Run();
     CHECK(result->ToString()->Equals(v8_str("abcdef")));
   }
-  isolate->Dispose();
+  isolate1->Dispose();
 
-  isolate = v8::Isolate::New();
   {
-    v8::Isolate::Scope iscope(isolate);
-    v8::HandleScope scope(isolate);
-    v8::Local<v8::Context> context = v8::Context::New(isolate);
+    v8::Isolate::Scope iscope(isolate2);
+    v8::HandleScope scope(isolate2);
+    v8::Local<v8::Context> context = v8::Context::New(isolate2);
     v8::Context::Scope context_scope(context);
 
     v8::Local<v8::String> source_str = v8_str(source);
@@ -835,12 +835,12 @@ TEST(SerializeToplevelIsolates) {
     v8::ScriptCompiler::Source source(source_str, origin, cache);
     v8::Local<v8::UnboundScript> script;
     {
-      DisallowCompilation no_compile(reinterpret_cast<Isolate*>(isolate));
+      DisallowCompilation no_compile(reinterpret_cast<Isolate*>(isolate2));
       script = v8::ScriptCompiler::CompileUnbound(
-          isolate, &source, v8::ScriptCompiler::kConsumeCodeCache);
+          isolate2, &source, v8::ScriptCompiler::kConsumeCodeCache);
     }
     v8::Local<v8::Value> result = script->BindToCurrentContext()->Run();
     CHECK(result->ToString()->Equals(v8_str("abcdef")));
   }
-  isolate->Dispose();
+  isolate2->Dispose();
 }