Handle namespace aliases.

llvm-svn: 82644

clang/lib/CodeGen/CodeGenModule.cpp

@@ -1635,6 +1635,7 @@ void CodeGenModule::EmitTopLevelDecl(Decl *D) {
   case Decl::UsingDirective:
   case Decl::ClassTemplate:
   case Decl::FunctionTemplate:
+  case Decl::NamespaceAlias:
     break;
   case Decl::CXXConstructor:
     EmitCXXConstructors(cast<CXXConstructorDecl>(D));

clang/test/CodeGenCXX/namespace-aliases.cpp

@@ -0,0 +1,3 @@
+// RUN: clang-cc -emit-llvm-only %s
+namespace A { }
+namespace B = A;