Make a somewhat more convincing test case for unqualified lookup through

using directives, and fix a bug thereby exposed:  since we're playing
tricks with pointers, we need to make certain we're always using the same 
pointers for things.
Also tweak an existing error message.

llvm-svn: 86679

1 files changed, 2 insertions, 1 deletions

diff --git a/clang/lib/Sema/SemaLookup.cpp b/clang/lib/Sema/SemaLookup.cpp
index f6ae4e147f7..eb7c3fa80e2 100644
--- a/clang/lib/Sema/SemaLookup.cpp
+++ b/clang/lib/Sema/SemaLookup.cpp
@@ -169,6 +169,7 @@ namespace {
       DeclContext *Common = UD->getNominatedNamespace();
       while (!Common->Encloses(EffectiveDC))
         Common = Common->getParent();
+      Common = Common->getPrimaryContext();
       
       list.push_back(UnqualUsingEntry(UD->getNominatedNamespace(), Common));
     }
@@ -187,7 +188,7 @@ namespace {
 
     std::pair<const_iterator,const_iterator>
     getNamespacesFor(DeclContext *DC) const {
-      return std::equal_range(begin(), end(), DC,
+      return std::equal_range(begin(), end(), DC->getPrimaryContext(),
                               UnqualUsingEntry::Comparator());
     }
   };