Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.

llvm-svn: 85042
diff --git a/llvm/lib/Analysis/IPA/Andersens.cpp b/llvm/lib/Analysis/IPA/Andersens.cpp
index e37a9db..b2ba4dd 100644
--- a/llvm/lib/Analysis/IPA/Andersens.cpp
+++ b/llvm/lib/Analysis/IPA/Andersens.cpp
@@ -126,8 +126,8 @@
     static bool isPod() { return true; }
   };
 
-  class VISIBILITY_HIDDEN Andersens : public ModulePass, public AliasAnalysis,
-                                      private InstVisitor<Andersens> {
+  class Andersens : public ModulePass, public AliasAnalysis,
+                    private InstVisitor<Andersens> {
     struct Node;
 
     /// Constraint - Objects of this structure are used to represent the various