Fix assertion reporting for tests using the subtesthack
This imports the content of this PR to upstream: https://github.com/untitaker/pytest-subtesthack/pull/7
Migrated from D8096 (view on Phabricator)
Staging instance, all changes can be removed at any time
This imports the content of this PR to upstream: https://github.com/untitaker/pytest-subtesthack/pull/7
Migrated from D8096 (view on Phabricator)