Return the name_sha of each flaky test in build_flaky_tests
Return the name_sha of each flaky test in build_flaky_tests

Summary: This allows us to generate the URL of the test history page.

Reviewers: wwu, paulruan

Reviewed By: paulruan

Subscribers: changesbot, kylec

Differential Revision: https://tails.corp.dropbox.com/D210496

dropbox/changes,dropbox/changes,dropbox/changes,dropbox/changes