[sledge] Fix potential name clash in Sh.rename
[sledge] Fix potential name clash in Sh.rename

Reviewed By: bennostein, ngorogiannis

Differential Revision: D17801952

fbshipit-source-id: 6c66ebb9b

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