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/CodeGen/ModuloScheduling/ModuloSchedGraph.cpp

@@ -13,6 +13,8 @@
 #include "ModuloSchedGraph.h"
 #include "llvm/Type.h"
 
+namespace llvm {
+
 ModuloSchedGraphNode::ModuloSchedGraphNode(unsigned id, int index, 
 					   const Instruction *inst, 
 					   const TargetMachine &targ) 
@@ -135,3 +137,4 @@ ModuloSchedGraphSet::~ModuloSchedGraphSet(){
   //delete all the graphs
 }
 
+} // End llvm namespace