viable/strict/1789482542: [dynamo] Specialize symbolic list.pop() indices (#196590)

发生了什么

Fixes #196285 BaseListVariable.list_pop called as_python_constant() on its index argument, so a shape-derived index under dynamic=True raised AsPythonConstantNotImplementedError and escaped the tracer as InternalTorchDynamoError . The index cannot stay symbolic, since which element leaves the list determines the structure of the traced graph. It now goes through the conversion Argument Clinic generates for index: Py…

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