Move a bunch of GC related files to heap/ subdirectory

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 16 matching lines @@
 
 #include <signal.h>
 
 #include <sys/stat.h>
 
 #include "src/v8.h"
 
 #include "src/bootstrapper.h"
 #include "src/compilation-cache.h"
 #include "src/debug.h"
+#include "src/heap/spaces.h"
 #include "src/ic-inl.h"
 #include "src/natives.h"
 #include "src/objects.h"
 #include "src/runtime.h"
 #include "src/scopeinfo.h"
 #include "src/serialize.h"
 #include "src/snapshot.h"
-#include "src/spaces.h"
 #include "test/cctest/cctest.h"
 
 using namespace v8::internal;
 
 static const unsigned kCounters = 256;
 static int local_counters[kCounters];
 static const char* local_counter_names[kCounters];
 
 
 static unsigned CounterHash(const char* s) {
@@ skipping 782 matching lines @@
     {
       DisallowCompilation no_compile(reinterpret_cast<Isolate*>(isolate2));
       script = v8::ScriptCompiler::CompileUnbound(
           isolate2, &source, v8::ScriptCompiler::kConsumeCodeCache);
     }
     v8::Local<v8::Value> result = script->BindToCurrentContext()->Run();
     CHECK(result->ToString()->Equals(v8_str("abcdef")));
   }
   isolate2->Dispose();
 }