Collect garbage before serializing heap in test-serialize

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 37d68de21108b3a39a7d283a077872d3885938ea..ade5ed5597ee6a049c495208327b7129fca17b76 100644
--- a/test/cctest/test-serialize.cc
+++ b/test/cctest/test-serialize.cc
@@ -252,12 +252,14 @@ static void Serialize() {
   // will clear the pending fixups array, which would otherwise contain GC roots
   // that would confuse the serialization/deserialization process.
   v8::Isolate* isolate = CcTest::isolate();
+  Isolate* internal_isolate = reinterpret_cast<Isolate*>(isolate);
   {
     v8::HandleScope scope(isolate);
     v8::Context::New(isolate);
   }
-  WriteToFile(reinterpret_cast<Isolate*>(isolate),
-              FLAG_testing_serialization_file);
+
+  internal_isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, "serialize");

[Michael Starzinger, 2013/09/19 11:29:39]

nit: Better use CcTest::i_isolate() here, maybe move the local variable down to
here as well.

+  WriteToFile(internal_isolate, FLAG_testing_serialization_file);
 }