pytorch

0e551bbc - [quant][pt2] Preserve source_fn_stack after QAT fusion (#110899)

[quant][pt2] Preserve source_fn_stack after QAT fusion (#110899) Test Plan: python test/test_quantization.py TestQuantizePT2EQAT.test_qat_preserve_source_fn_stack Reviewers: jerryzh168, kimishpatel Subscribers: jerryzh168, kimishpatel, supriyar Differential Revision: [D50101253](https://our.internmc.facebook.com/intern/diff/D50101253) Pull Request resolved: https://github.com/pytorch/pytorch/pull/110899 Approved by: https://github.com/jerryzh168