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

include/llvm/CallGraphSCCPass.h

@@ -23,6 +23,8 @@
 
 #include "llvm/Pass.h"
 
+namespace llvm {
+
 class CallGraphNode;
 
 struct CallGraphSCCPass : public Pass {
@@ -46,4 +48,6 @@ struct CallGraphSCCPass : public Pass {
   virtual void getAnalysisUsage(AnalysisUsage &Info) const;
 };
 
+} // End llvm namespace
+
 #endif