Rename DataStructureAnalysis namespace to DS


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4596 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DataStructure/TopDownClosure.cpp b/lib/Analysis/DataStructure/TopDownClosure.cpp
index cca6c16..69422ca 100644
--- a/lib/Analysis/DataStructure/TopDownClosure.cpp
+++ b/lib/Analysis/DataStructure/TopDownClosure.cpp
@@ -68,7 +68,7 @@
 
   for (unsigned i = 0, e = CallSite.getNumPtrArgs(); i != e; ++i, ++AI) {
     // Advance the argument iterator to the first pointer argument...
-    while (!DataStructureAnalysis::isPointerType(AI->getType())) ++AI;
+    while (!DS::isPointerType(AI->getType())) ++AI;
     
     // TD ...Merge the formal arg scalar with the actual arg node
     DSNodeHandle &NodeForFormal = Graph.getNodeForValue(AI);