Update clang plugin
Update clang plugin

Reviewed By: akotulski

Differential Revision: D3517174

fbshipit-source-id: 273e03b

kageiit/infer,kageiit/infer,kageiit/infer,jsachs/infer,ropas/infer,jsachs/infer,ropas/infer,jvillard/infer,blzq/infer,ropas/infer,blzq/infer,xennygrimmato/infer,kageiit/infer,jvillard/infer,ryoon/infer,facebook/infer,ryoon/infer,xennygrimmato/infer,ryoon/infer,facebook/infer,jsachs/infer,jvillard/infer,jsachs/infer,ropas/infer,facebook/infer,kageiit/infer,facebook/infer,xennygrimmato/infer,jvillard/infer,blzq/infer,jvillard/infer,jsachs/infer,xennygrimmato/infer,blzq/infer,ropas/infer,xennygrimmato/infer,facebook/infer,ropas/infer,jvillard/infer,ryoon/infer,jsachs/infer,xennygrimmato/infer,blzq/infer,ryoon/infer,facebook/infer,xennygrimmato/infer,facebook/infer,kageiit/infer,kageiit/infer,blzq/infer,jvillard/infer,ryoon/infer