Add a missing @end. Why didn't this get diagnosed?

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61256 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaObjCXX/overload.mm b/test/SemaObjCXX/overload.mm
index 41865ff..badba16 100644
--- a/test/SemaObjCXX/overload.mm
+++ b/test/SemaObjCXX/overload.mm
@@ -10,6 +10,7 @@
  func(self);
  return self;
 }
+@end
 
 @protocol P0
 @end