Fix crash generating debug info for constructor for anonymous struct.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93601 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/debug-info.cpp b/test/CodeGenCXX/debug-info.cpp
index 705491e..cb6e830 100644
--- a/test/CodeGenCXX/debug-info.cpp
+++ b/test/CodeGenCXX/debug-info.cpp
@@ -18,3 +18,9 @@
   int B::*a = 0;
   void (B::*b)() = 0;
 }
+
+namespace EmptyNameCrash {
+  struct A { A(); };
+  typedef struct { A x; } B;
+  B x;
+}