[sledge] Test: Ignore **/*.ll.{out,err} files generated by test runs
[sledge] Test: Ignore **/*.ll.{out,err} files generated by test runs

Reviewed By: ngorogiannis

Differential Revision: D21720986

fbshipit-source-id: a507dcc7e

jvillard/infer,jvillard/infer,jvillard/infer,jvillard/infer,jvillard/infer,facebook/infer,facebook/infer,facebook/infer,jvillard/infer,facebook/infer,jvillard/infer,facebook/infer,facebook/infer,facebook/infer