Push "out-of-line" declarations into scope when their lexical/semantic
redeclaration contexts are the same, as occurs within linkage
specifications. Fixes PR9162.

llvm-svn: 141521
diff --git a/clang/test/SemaCXX/linkage-spec.cpp b/clang/test/SemaCXX/linkage-spec.cpp
index b5a10a7..cb7e32c 100644
--- a/clang/test/SemaCXX/linkage-spec.cpp
+++ b/clang/test/SemaCXX/linkage-spec.cpp
@@ -89,3 +89,16 @@
 
 // PR7076
 extern "C" const char *Version_string = "2.9";
+
+namespace PR9162 {
+  extern "C" {
+    typedef struct _ArtsSink ArtsSink;
+    struct _ArtsSink {
+      int sink;
+    };
+  }
+  int arts_sink_get_type()
+  {
+    return sizeof(ArtsSink);
+  }
+}