PR25731: namespace alias declarations can appear at block scope; ensure that we

do scope-based lookup when looking for redeclarations of them. Add some related
missing checks for the scope-based redeclaration lookup: properly filter the
list of found declarations to match the scope, and diagnose shadowing of a
template parameter name.

llvm-svn: 254663

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/namespace-alias.cpp b/clang/test/SemaCXX/namespace-alias.cpp
index 63615ecbd35..1cf820e3e38 100644
--- a/clang/test/SemaCXX/namespace-alias.cpp
+++ b/clang/test/SemaCXX/namespace-alias.cpp
@@ -125,3 +125,11 @@ namespace PR7014 {
 
   namespace Y = X::Y;
 }
+
+namespace PR25731 {
+  void f() {
+    namespace X = PR25731;
+    namespace X = PR25731;
+    X::f();
+  }
+}