When declaring a namespace alias, ignore previous declarations that
aren't in scope. Fixes PR7014.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102915 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/namespace-alias.cpp b/test/SemaCXX/namespace-alias.cpp
index 3ea1ccf..1c3da3c 100644
--- a/test/SemaCXX/namespace-alias.cpp
+++ b/test/SemaCXX/namespace-alias.cpp
@@ -91,3 +91,13 @@
 
 A::X nx;
 
+namespace PR7014 {
+  namespace X
+  {
+    namespace Y {}
+  }
+
+  using namespace X;
+
+  namespace Y = X::Y;
+}