Initial slang.

Change-Id: I4f84a741e5fbc440cd4c251406d2b611a237f713
diff --git a/test/CodeGenCXX/constructor-init-reference.cpp b/test/CodeGenCXX/constructor-init-reference.cpp
new file mode 100644
index 0000000..5e75159
--- /dev/null
+++ b/test/CodeGenCXX/constructor-init-reference.cpp
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -emit-llvm -o - %s | grep "store i32\* @x, i32\*\*"
+
+int x;
+struct A {
+  int& y;
+  A() : y(x) {}
+};
+A z;
+