Put all LLVM code into the llvm namespace, as per bug 109.

llvm-svn: 9903
diff --git a/llvm/lib/Support/Annotation.cpp b/llvm/lib/Support/Annotation.cpp
index 890b18d..b88624d 100644
--- a/llvm/lib/Support/Annotation.cpp
+++ b/llvm/lib/Support/Annotation.cpp
@@ -14,6 +14,8 @@
 #include <map>
 #include "Support/Annotation.h"
 
+namespace llvm {
+
 typedef std::map<const std::string, unsigned> IDMapType;
 static unsigned IDCounter = 0;  // Unique ID counter
 
@@ -94,3 +96,5 @@
   if (I == getFactMap().end()) return 0;
   return I->second.first(ID, Obj, I->second.second);
 }
+
+} // End llvm namespace