[libclang] Add a libclang test I neglected to commit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150193 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Index/index-suppress-refs.hpp b/test/Index/index-suppress-refs.hpp
new file mode 100644
index 0000000..4aab08b
--- /dev/null
+++ b/test/Index/index-suppress-refs.hpp
@@ -0,0 +1,3 @@
+
+class B1 {};
+class B2 {};