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

tools/analyze/GraphPrinters.cpp

@@ -20,6 +20,8 @@
 #include "llvm/Analysis/CallGraph.h"
 #include <fstream>
 
+namespace llvm {
+
 template<typename GraphType>
 static void WriteGraphToFile(std::ostream &O, const std::string &GraphName,
                              const GraphType &GT) {
@@ -72,3 +74,5 @@ namespace {
   RegisterAnalysis<CallGraphPrinter> P2("print-callgraph",
                                         "Print Call Graph to 'dot' file");
 };
+
+} // End llvm namespace