pytorch

16a6e061 - dbr quant: clean up key types in AutoQuantizationState mappings (#68369)

dbr quant: clean up key types in AutoQuantizationState mappings (#68369) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/68369 `AutoQuantizationState` has various mappings keyed on IDs. Only `tensor_id_to_observer` actually needs string keys because it is an `torch.nn.ModuleDict`. This PR changes the other mappings to have integer keys, for simplicity and performance. Test Plan: ``` python test/test_quantization.py TestQuantizeDBR ``` Reviewed By: jerryzh168 Differential Revision: D32463765 Pulled By: vkuzo fbshipit-source-id: 5a9bf2a1102859097eedf1e536761084cd408856