Check in LLVM r95781.
diff --git a/test/CodeCompletion/namespace-alias.cpp b/test/CodeCompletion/namespace-alias.cpp
new file mode 100644
index 0000000..efbf996
--- /dev/null
+++ b/test/CodeCompletion/namespace-alias.cpp
@@ -0,0 +1,20 @@
+namespace N4 {
+ namespace N3 { }
+}
+
+class N3;
+
+namespace N2 {
+ namespace I1 { }
+ namespace I4 = I1;
+ namespace I5 { }
+ namespace I1 { }
+
+ namespace New =
+ // RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:13:18 %s -o - | FileCheck -check-prefix=CC1 %s
+ // CHECK-CC1: I1
+ // CHECK-CC1: I4
+ // CHECK-CC1: I5
+ // CHECK-CC1: N2
+ // CHECK-CC1-NEXT: N4
+