viable/strict/1788771294: [dynamo] Preserve is_inference in after-AOT repros (#193565)

发生了什么

After-AOT repro generation receives is_inference through the compiler kwargs but drops it while dumping and replaying the graph. When an inference compilation fails with repro_after="aot", the generated repro therefore recompiles the graph with compile_fx_inner's default is_inference=False, potentially changing its behavior and preventing the original failure from reproducing. Propagate is_inference through graph du…

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