Clean up the use of static and anonymous namespaces. This turned up
several things that were neither in an anonymous namespace nor static
but not intended to be global.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51017 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp
index 1807f98..e935898 100644
--- a/lib/CodeGen/BranchFolding.cpp
+++ b/lib/CodeGen/BranchFolding.cpp
@@ -38,13 +38,13 @@
 STATISTIC(NumTailMerge , "Number of block tails merged");
 static cl::opt<cl::boolOrDefault> FlagEnableTailMerge("enable-tail-merge", 
                               cl::init(cl::BOU_UNSET), cl::Hidden);
-namespace {
-  // Throttle for huge numbers of predecessors (compile speed problems)
-  static cl::opt<unsigned>
-  TailMergeThreshold("tail-merge-threshold", 
-            cl::desc("Max number of predecessors to consider tail merging"),
-            cl::init(100), cl::Hidden);
+// Throttle for huge numbers of predecessors (compile speed problems)
+static cl::opt<unsigned>
+TailMergeThreshold("tail-merge-threshold", 
+          cl::desc("Max number of predecessors to consider tail merging"),
+          cl::init(100), cl::Hidden);
 
+namespace {
   struct VISIBILITY_HIDDEN BranchFolder : public MachineFunctionPass {
     static char ID;
     explicit BranchFolder(bool defaultEnableTailMerge) :