Unified tests in the specifications repo are currently split between the following solution directories:

$/tests/MongoDB.Bson.Tests
$/tests/MongoDB.Driver.Core.Tests
$/tests/MongoDB.Driver.GridFS.Tests
$/tests/MongoDB.Driver.Tests

When updating spec tests to match a particular commit in the specifications repo, it often requires poking around to see where a particular set of updated spec tests reside. It would be easier if we had a $/specifications directory at the root level, which is simply a copy of the specifications repo. The C# test runners could remain in their current locations (in the directories above) but the spec tests themselves move beneath the $/specifications directory.