Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in
the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.

llvm-svn: 33939
diff --git a/llvm/lib/Transforms/Utils/CodeExtractor.cpp b/llvm/lib/Transforms/Utils/CodeExtractor.cpp
index 0f35d8b..87a2868 100644
--- a/llvm/lib/Transforms/Utils/CodeExtractor.cpp
+++ b/llvm/lib/Transforms/Utils/CodeExtractor.cpp
@@ -25,6 +25,7 @@
 #include "llvm/Analysis/Verifier.h"
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/ADT/StringExtras.h"
 #include <algorithm>
@@ -40,7 +41,7 @@
                  cl::desc("Aggregate arguments to code-extracted functions"));
 
 namespace {
-  class CodeExtractor {
+  class VISIBILITY_HIDDEN CodeExtractor {
     typedef std::vector<Value*> Values;
     std::set<BasicBlock*> BlocksToExtract;
     DominatorSet *DS;