Prep for new warning.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76709 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Rewriter/rewrite-foreach-4.m b/test/Rewriter/rewrite-foreach-4.m
index 774f9a0..5c831ea 100644
--- a/test/Rewriter/rewrite-foreach-4.m
+++ b/test/Rewriter/rewrite-foreach-4.m
@@ -9,7 +9,7 @@
 {
         return 0;
 }
-- (id) allKeys {}
+- (id) allKeys { return 0; }
 @end
 
 @interface MyList (BasicTest)