test case for PR7920.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111821 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/debug-info.cpp b/test/CodeGenCXX/debug-info.cpp
index 6bb9533..71c8603 100644
--- a/test/CodeGenCXX/debug-info.cpp
+++ b/test/CodeGenCXX/debug-info.cpp
@@ -50,3 +50,8 @@
     B b;
   }
 }
+
+void foo() {
+  const wchar_t c = L'x';
+  wchar_t d = c;
+}