Update test case.

llvm-svn: 167301
diff --git a/clang/test/SemaObjC/warn-implicit-self-in-block.m b/clang/test/SemaObjC/warn-implicit-self-in-block.m
index cc70b5b..a7ee16e 100644
--- a/clang/test/SemaObjC/warn-implicit-self-in-block.m
+++ b/clang/test/SemaObjC/warn-implicit-self-in-block.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -x objective-c -fobjc-arc -fblocks -verify %s
+// RUN: %clang_cc1 -x objective-c -fobjc-arc -fblocks -Wimplicit-retain-self -verify %s
 // rdar://11194874
 
 @interface Root @end