Record source/line info in SourceRange and report in highlight (#21157)
Summary:
Resubmission of https://github.com/pytorch/pytorch/pull/20898 with flake8 fix
Pull Request resolved: https://github.com/pytorch/pytorch/pull/21157
Reviewed By: zdevito
Differential Revision: D15560324
Pulled By: jamesr66a
fbshipit-source-id: fc4e429eac03d2768f758b19c9d43e0bb614c2b8
