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/Support/Mangler.cpp

@@ -16,6 +16,8 @@
 #include "llvm/Type.h"
 #include "Support/StringExtras.h"
 
+namespace llvm {
+
 static char HexDigit(int V) {
   return V < 10 ? V+'0' : V+'A'-10;
 }
@@ -99,3 +101,4 @@ Mangler::Mangler(Module &m, bool addUnderscorePrefix)
         FoundNames.insert(I->getName());   // Otherwise, keep track of name
 }
 
+} // End llvm namespace