dotnet/corefx — pull request #332 by ericstj (2014-12-29 20:53:14+00:00)
Title: Add System.IO.FileSystem and System.IO.FileSystem.Primitives

This change adds the FileSystem and FileSystem.Primitives assemblies. I have written new tests for FS.Primitives and created a starting point for porting existing tests into FileSystem. I'd like to hold off on any contributions to FileSystem until I flesh out the test suite.