XFAIL the test case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70356 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/casts.c b/test/Analysis/casts.c
index bea63ff..8b284e1 100644
--- a/test/Analysis/casts.c
+++ b/test/Analysis/casts.c
@@ -1,3 +1,6 @@
+// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region --verify %s
+// XFAIL
+
 struct sockaddr_storage {
   int d;
 };