Fix for 3303 MultithreadedParallelIsolates has a race condition.

src/objects.cc

 // Copyright 2013 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 "v8.h"
 
 #include "accessors.h"
 #include "allocation-site-scopes.h"
 #include "api.h"
 #include "arguments.h"
@@ skipping 11242 matching lines @@
   }
   return age;
 }
 
 
 void Code::MakeOlder(MarkingParity current_parity) {
   byte* sequence = FindCodeAgeSequence();
   if (sequence != NULL) {
     Age age;
     MarkingParity code_parity;
-    GetCodeAgeAndParity(sequence, &age, &code_parity);
+    Isolate* isolate = GetIsolate();
+    GetCodeAgeAndParity(isolate, sequence, &age, &code_parity);
     age = EffectiveAge(age);
     if (age != kLastCodeAge && code_parity != current_parity) {
-      PatchPlatformCodeAge(GetIsolate(),
+      PatchPlatformCodeAge(isolate,
                            sequence,
                            static_cast<Age>(age + 1),
                            current_parity);
     }
   }
 }
 
 
 bool Code::IsOld() {
   return GetAge() >= kIsOldCodeAge;
@@ skipping 15 matching lines @@
 }
 
 
 Code::Age Code::GetRawAge() {
   byte* sequence = FindCodeAgeSequence();
   if (sequence == NULL) {
     return kNoAgeCodeAge;
   }
   Age age;
   MarkingParity parity;
-  GetCodeAgeAndParity(sequence, &age, &parity);
+  GetCodeAgeAndParity(GetIsolate(), sequence, &age, &parity);
   return age;
 }
 
 
 void Code::GetCodeAgeAndParity(Code* code, Age* age,
                                MarkingParity* parity) {
   Isolate* isolate = code->GetIsolate();
   Builtins* builtins = isolate->builtins();
   Code* stub = NULL;
 #define HANDLE_CODE_AGE(AGE)                                            \
@@ skipping 5930 matching lines @@
 #define ERROR_MESSAGES_TEXTS(C, T) T,
   static const char* error_messages_[] = {
       ERROR_MESSAGES_LIST(ERROR_MESSAGES_TEXTS)
   };
 #undef ERROR_MESSAGES_TEXTS
   return error_messages_[reason];
 }
 
 
 } }  // namespace v8::internal