Add flag torch_jit_disable_warning_prints to allow disabling all warnings.warn (#49313)
Summary:
Adding a flag torch_jit_disable_warning_prints to optimize interpreter performance by suppressing (potentially large amount) of warnings.warn.
This is to work around TorchScript's warning behavior mismatch with Python. Python by default triggers a warning once per location but TorchScript doesn't support it. This causes same warning to trigger and print once per inference run, hurting performance.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/49313
Reviewed By: SplitInfinity
Differential Revision: D25534274
Pulled By: gmagogsfm
fbshipit-source-id: eaeb57a335c3e6c7eb259671645db05d781e80a2
