Fix test failure by making sure this file isn't identical to any other file
included in the same test. Clang gets confused about whether it's already built
a module for this file, when running on a content-addressible filesystem.

llvm-svn: 174694
GitOrigin-RevId: a245d3e1fc9aecefd136d23110d73410bf01e267
diff --git a/test/Modules/Inputs/HasSubModules.framework/Frameworks/Sub.framework/PrivateHeaders/SubPriv.h b/test/Modules/Inputs/HasSubModules.framework/Frameworks/Sub.framework/PrivateHeaders/SubPriv.h
index 8a7eb84..cbbf392 100644
--- a/test/Modules/Inputs/HasSubModules.framework/Frameworks/Sub.framework/PrivateHeaders/SubPriv.h
+++ b/test/Modules/Inputs/HasSubModules.framework/Frameworks/Sub.framework/PrivateHeaders/SubPriv.h
@@ -1 +1,2 @@
 #include <Sub/Types.h>
+// Private