Summary: This change all the tests to use strings as the command names.
Reviewed By: simpkins
Differential Revision: D19649479
fbshipit-source-id: 4b2cb9b3af73a7508ef359ee3c407d04a39c7893
Summary:
In preparation for merging fb-mercurial sources to the Eden repository,
move everything from the top-level directory into an `eden/scm`
subdirectory.