[quant][fx] Fix lowering pass for cases when `to` is not called with positional args (#75146)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/75146
Previously we assume `to` must be called with positioanl args, but this may not be the case,
e.g. we can do `to(dtype=?)` or `to(memory_format=?)`
Test Plan:
python test/test_quantization.py TestQuantizeFx
python test/test_quantization.py TestQuantizeFxOps
Imported from OSS
Reviewed By: ejguan
Differential Revision: D35342088
fbshipit-source-id: 22bfe78ae84e74141ae6560285c5c38bc068c999
(cherry picked from commit a3593c0bb658a4615559c951ee68c9a6f55074d5)
