Add 'expected-warning' to make test case pass.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60548 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/null-deref-ps.c b/test/Analysis/null-deref-ps.c
index 8060653..422c9da 100644
--- a/test/Analysis/null-deref-ps.c
+++ b/test/Analysis/null-deref-ps.c
@@ -75,8 +75,8 @@
 int bar3(int*p, int q, int *r) __attribute__((nonnull(1,3)));
 
 int f6c(int *p, int *q) {
-   return !p ? bar3(q, 2, p)
-             : bar3(p, 2, q);
+   return !p ? bar3(q, 2, p) // expected-warning {{Null pointer passed as an argument to a 'nonnull' parameter}}
+             : bar3(p, 2, q); // no-warning
 }
 
 int* qux();