Support quantizing any methods called (#25505)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/25505
Support for quantizing all the methods called by forward method, including
child module methods and other methods in the current module
It relies on module level constant prop, we need to figure out a way to do constant prop
for these methods as well. We can either do constant prop in the module level or do constant
prop in the quantization function, but this will need some discussion.
Test Plan:
python test/test_jit.py 'TestJit.insert_quant_dequant'
python test/test_quantizer.py
Imported from OSS
Differential Revision: D17208887
fbshipit-source-id: 21749457b21b00a6edada290c26324e2fb210b10
