Frontend: Add basic -H support.
 - I didn't implement the GCC "multiple include guard" detection parts, because
   it doesn't seem useful or obvious.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111983 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Frontend/Inputs/test.h b/test/Frontend/Inputs/test.h
new file mode 100644
index 0000000..98cc459
--- /dev/null
+++ b/test/Frontend/Inputs/test.h
@@ -0,0 +1 @@
+#include "test2.h"