Handle namespace aliases.

llvm-svn: 82644
diff --git a/clang/test/CodeGenCXX/namespace-aliases.cpp b/clang/test/CodeGenCXX/namespace-aliases.cpp
new file mode 100644
index 0000000..5baea87
--- /dev/null
+++ b/clang/test/CodeGenCXX/namespace-aliases.cpp
@@ -0,0 +1,3 @@
+// RUN: clang-cc -emit-llvm-only %s
+namespace A { }
+namespace B = A;