| Index: src/isolate.cc
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| diff --git a/src/isolate.cc b/src/isolate.cc
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| index 14b9df7b10832feabe95bb2cc10a3dfcd470ef91..2cd04f66c72aa5c54013ea914d35660008115195 100644
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| --- a/src/isolate.cc
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| +++ b/src/isolate.cc
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| @@ -2822,6 +2822,26 @@ bool Isolate::IsArrayOrObjectPrototype(Object* object) {
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|    return false;
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|  }
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|  
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| +void Isolate::ClearOSROptimizedCode() {
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| +  DisallowHeapAllocation no_gc;
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| +  Object* context = heap()->native_contexts_list();
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| +  while (!context->IsUndefined(this)) {
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| +    Context* current_context = Context::cast(context);
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| +    current_context->ClearOptimizedCodeMap();
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| +    context = current_context->next_context_link();
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| +  }
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| +}
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| +
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| +void Isolate::EvictOSROptimizedCode(Code* code, const char* reason) {
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| +  DisallowHeapAllocation no_gc;
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| +  Object* context = heap()->native_contexts_list();
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| +  while (!context->IsUndefined(this)) {
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| +    Context* current_context = Context::cast(context);
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| +    current_context->EvictFromOptimizedCodeMap(code, reason);
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| +    context = current_context->next_context_link();
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| +  }
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| +}
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| +
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|  bool Isolate::IsInAnyContext(Object* object, uint32_t index) {
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|    DisallowHeapAllocation no_gc;
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|    Object* context = heap()->native_contexts_list();
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| 
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