Create a temporary if the lvalue is a bitfield. Reported by Eli.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72155 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/references.cpp b/test/CodeGenCXX/references.cpp
index a1a6c0a..82b9ec7 100644
--- a/test/CodeGenCXX/references.cpp
+++ b/test/CodeGenCXX/references.cpp
@@ -35,6 +35,9 @@
   int a = 10;
   f(a);
   
+  struct { int bitfield : 3; } s = { 3 };
+  f(s.bitfield)
+  
   f(10);
 }