Put all LLVM code into the llvm namespace, as per bug 109.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/IPO/GlobalDCE.cpp

@@ -22,6 +22,8 @@
 #include "Support/Statistic.h"
 #include <set>
 
+namespace llvm {
+
 namespace {
   Statistic<> NumFunctions("globaldce","Number of functions removed");
   Statistic<> NumVariables("globaldce","Number of global variables removed");
@@ -195,3 +197,5 @@ bool GlobalDCE::SafeToDestroyConstant(Constant *C) {
 
   return true;
 }
+
+} // End llvm namespace