pytorch

9fe2673d - ns for fx: additional bugfix for user defined functions (#57028)

ns for fx: additional bugfix for user defined functions (#57028) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/57028 Adds a test case for wrapped sigmoid, and fixes the following issues to make it pass in NS: * allows comparing between x.sigmoid() and torch.sigmoid(x), if they are related * allows dtype cast from FP32_OR_INT8 to FP32, via dequantize (this will be improved later) Test Plan: ``` python test/test_quantization.py TestFXNumericSuiteCoreAPIs.test_user_defined_function ``` Reviewed By: jerryzh168 Differential Revision: D28030089 Pulled By: vkuzo fbshipit-source-id: b237353e2d564a4476f409df461746a259015a4b