Add a wrapper for inspect in JIT to produce better error message (#25415)
Summary:
If source code is not available due to packaging (e.g. sources are compiled to .pyc), TorchScript produces very obscure error message. This tries to make it nicer and allow to customize message by overriding _utils_internal.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/25415
Test Plan: Really hard to unittest properly. Did one off testing by compiling to .pyc and checking the message.
Differential Revision: D17118238
Pulled By: dzhulgakov
fbshipit-source-id: 3cbfee0abddc8613000680548bfe0b8ed52a36b0
