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

src/objects-debug.cc

 // Copyright 2012 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 350 matching lines @@
 
 void PolymorphicCodeCache::PolymorphicCodeCacheVerify() {
   VerifyHeapPointer(cache());
   CHECK(cache()->IsUndefined() || cache()->IsPolymorphicCodeCacheHashTable());
 }
 
 
 void TypeFeedbackInfo::TypeFeedbackInfoVerify() {
   VerifyObjectField(kStorage1Offset);
   VerifyObjectField(kStorage2Offset);
+  VerifyHeapPointer(feedback_vector());
 }
 
 
 void AliasedArgumentsEntry::AliasedArgumentsEntryVerify() {
   VerifySmiField(kAliasedContextSlot);
 }
 
 
 void FixedArray::FixedArrayVerify() {
   for (int i = 0; i < length(); i++) {
@@ skipping 163 matching lines @@
         next_function_link()->IsUndefined() ||
         next_function_link()->IsJSFunction());
 }
 
 
 void SharedFunctionInfo::SharedFunctionInfoVerify() {
   CHECK(IsSharedFunctionInfo());
   VerifyObjectField(kNameOffset);
   VerifyObjectField(kCodeOffset);
   VerifyObjectField(kOptimizedCodeMapOffset);
-  VerifyObjectField(kFeedbackVectorOffset);
   VerifyObjectField(kScopeInfoOffset);
   VerifyObjectField(kInstanceClassNameOffset);
   VerifyObjectField(kFunctionDataOffset);
   VerifyObjectField(kScriptOffset);
   VerifyObjectField(kDebugInfoOffset);
 }
 
 
 void JSGlobalProxy::JSGlobalProxyVerify() {
   CHECK(IsJSGlobalProxy());
@@ skipping 592 matching lines @@
   for (int i = 0; i < number_of_transitions(); ++i) {
     if (!CheckOneBackPointer(current_map, GetTarget(i))) return false;
   }
   return true;
 }
 
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal