Summary:
Now that fastmanifest and treemanifest are moved, we can moved the
tests.
Test Plan: make local && ./run-tests.py
Reviewers: singhsrb, #mercurial
Reviewed By: singhsrb
Subscribers: singhsrb
Differential Revision: https://phabricator.intern.facebook.com/D6685334
Signature: 6685334:1515526455:57791d7f9d2a3f2a6119c0e79a81b31e63a11c60
