tree 56c6476682a556047017f195a83a0d577f1ab395
parent b18f3a0a6dfb661e868dad7138226e60558d57e2
author Matt Rajca <matt.rajca@me.com> 1495475128 -0700
committer Matt Rajca <matt.rajca@me.com> 1495475419 -0700

Ensure FileManager.createDirectory does not crash if directory already exists on Linux.

Add a test for [SR-4298](https://bugs.swift.org/browse/SR-4298) to ensure calling FileManager.createDirectory does not crash
if the directory already exists.