Move a bunch of GC related files to heap/ subdirectory

src/messages.cc

 // Copyright 2011 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/v8.h"
 
 #include "src/api.h"
 #include "src/execution.h"
+#include "src/heap/spaces-inl.h"
 #include "src/messages.h"
-#include "src/spaces-inl.h"
 
 namespace v8 {
 namespace internal {
 
 
 // If no message listeners have been registered this one is called
 // by default.
 void MessageHandler::DefaultMessageReport(Isolate* isolate,
                                           const MessageLocation* loc,
                                           Handle<Object> message_obj) {
@@ skipping 135 matching lines @@
 
 SmartArrayPointer<char> MessageHandler::GetLocalizedMessage(
     Isolate* isolate,
     Handle<Object> data) {
   HandleScope scope(isolate);
   return GetMessage(isolate, data)->ToCString(DISALLOW_NULLS);
 }
 
 
 } }  // namespace v8::internal