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
diff --git a/include/Support/SetOperations.h b/include/Support/SetOperations.h
index dc6e0d6..bb1e68e 100644
--- a/include/Support/SetOperations.h
+++ b/include/Support/SetOperations.h
@@ -15,6 +15,8 @@
 #ifndef SUPPORT_SETOPERATIONS_H
 #define SUPPORT_SETOPERATIONS_H
 
+namespace llvm {
+
 // set_union(A, B) - Compute A := A u B, return whether A changed.
 //
 template <class S1Ty, class S2Ty>
@@ -64,4 +66,6 @@
     S1.erase(*SI);
 }
 
+} // End llvm namespace
+
 #endif