elixir-lang/elixir — pull request #2348 by chyndman (2014-05-26 19:22:41+00:00)
Title: Mix.Project.build_structure tested for copying fallback

I'm getting Utils, Project, build_project, build_structure mixed up...

Anyway, this is for Mix.ProjectTest to handle when `Mix.Utils.symlink_or_copy` copies rather than symlinks, by comparing directory contents. Also, `Mix.Project.build_structure` returns `:ok`, rather than the return value of its last function call.