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/PrologEpilogInserter.cpp

@@ -25,6 +25,8 @@
 #include "llvm/Target/TargetFrameInfo.h"
 #include "llvm/Target/TargetInstrInfo.h"
 
+namespace llvm {
+
 namespace {
   struct PEI : public MachineFunctionPass {
     const char *getPassName() const {
@@ -66,6 +68,7 @@ namespace {
   };
 }
 
+
 /// createPrologEpilogCodeInserter - This function returns a pass that inserts
 /// prolog and epilog code, and eliminates abstract frame references.
 ///
@@ -258,3 +261,5 @@ void PEI::replaceFrameIndices(MachineFunction &Fn) {
 	  break;
 	}
 }
+
+} // End llvm namespace