Revert "Continued fix for 351257. Reusing the feedback vector is too complex."

src/heap-snapshot-generator.cc

 // Copyright 2013 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 1380 matching lines @@
                        SharedFunctionInfo::kFunctionDataOffset);
   SetInternalReference(obj, entry,
                        "debug_info", shared->debug_info(),
                        SharedFunctionInfo::kDebugInfoOffset);
   SetInternalReference(obj, entry,
                        "inferred_name", shared->inferred_name(),
                        SharedFunctionInfo::kInferredNameOffset);
   SetInternalReference(obj, entry,
                        "optimized_code_map", shared->optimized_code_map(),
                        SharedFunctionInfo::kOptimizedCodeMapOffset);
-  SetInternalReference(obj, entry,
-                       "feedback_vector", shared->feedback_vector(),
-                       SharedFunctionInfo::kFeedbackVectorOffset);
   SetWeakReference(obj, entry,
                    "initial_map", shared->initial_map(),
                    SharedFunctionInfo::kInitialMapOffset);
 }
 
 
 void V8HeapExplorer::ExtractScriptReferences(int entry, Script* script) {
   HeapObject* obj = script;
   SetInternalReference(obj, entry,
                        "source", script->source(),
@@ skipping 1664 matching lines @@
   writer_->AddString("\"<dummy>\"");
   for (int i = 1; i < sorted_strings.length(); ++i) {
     writer_->AddCharacter(',');
     SerializeString(sorted_strings[i]);
     if (writer_->aborted()) return;
   }
 }
 
 
 } }  // namespace v8::internal