Add safety check to TFLite graph loader.#6247
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Add safety check to TFLite graph loader.
Fix an issue that a malformed *.tflite file can cause crashes in TFLite if the graph has unresolved dependency.
PartitionGraphIntoIndependentNodeSubsetsImpl::Partition() in tflite/graph_info.cc assumes all non-kEpochAlwaysReady model outputs have a valid non-negative epoch index. If a model output tensor remains kEpochNotReady (-1), the code indexes node_subsets_[-1], causing memory corruption / segmentation fault.