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/CodeGen/MachineInstr.h

@@ -20,6 +20,8 @@
 #include "Support/Annotation.h"
 #include "Support/iterator"
 
+namespace llvm {
+
 class Value;
 class Function;
 class MachineBasicBlock;
@@ -715,4 +717,6 @@ std::ostream& operator<<(std::ostream &OS, const MachineInstr &MI);
 std::ostream& operator<<(std::ostream &OS, const MachineOperand &MO);
 void PrintMachineInstructions(const Function *F);
 
+} // End llvm namespace
+
 #endif