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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85042 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/IPO/PruneEH.cpp

@@ -36,7 +36,7 @@ STATISTIC(NumRemoved, "Number of invokes removed");
 STATISTIC(NumUnreach, "Number of noreturn calls optimized");
 
 namespace {
-  struct VISIBILITY_HIDDEN PruneEH : public CallGraphSCCPass {
+  struct PruneEH : public CallGraphSCCPass {
     static char ID; // Pass identification, replacement for typeid
     PruneEH() : CallGraphSCCPass(&ID) {}