[heap] Add --stress-incremental-marking flag.

test/cctest/test-serialize.cc

 // Copyright 2007-2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1109 matching lines @@
 
   int result_int;
   CHECK(copy_result->ToInt32(&result_int));
   CHECK_EQ(7, result_int);
 
   delete cache;
   source.Dispose();
 }
 
 TEST(CodeSerializerLargeCodeObjectWithIncrementalMarking) {
+  FLAG_stress_incremental_marking = false;
   FLAG_serialize_toplevel = true;
   FLAG_always_opt = false;
   // This test relies on (full-codegen) code objects going to large object
   // space. Once FCG goes away, it must either be redesigned (to put some
   // other large deserialized object into LO space), or it can be deleted.
   FLAG_ignition = false;
   const char* filter_flag = "--turbo-filter=NOTHING";
   FlagList::SetFlagsFromString(filter_flag, StrLength(filter_flag));
   FLAG_black_allocation = true;
   FLAG_manual_evacuation_candidates_selection = true;
@@ skipping 1406 matching lines @@
   }
   delete[] blob.data;
 }
 
 TEST(SerializationMemoryStats) {
   FLAG_profile_deserialization = true;
   FLAG_always_opt = false;
   v8::StartupData blob = v8::V8::CreateSnapshotDataBlob();
   delete[] blob.data;
 }