[libclang] Add a test to make sure we skip bodies properly from "#pragma once" headers.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169558 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Index/skip-parsed-bodies/t2.cpp b/test/Index/skip-parsed-bodies/t2.cpp
index 05918d7..0df28d0 100644
--- a/test/Index/skip-parsed-bodies/t2.cpp
+++ b/test/Index/skip-parsed-bodies/t2.cpp
@@ -1 +1,2 @@
 #include "t.h"
+#include "pragma_once.h"