Now that the dead ctor is gone, nothing uses the old node mapping exported by
cloneInto: make it an internally used mapping.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20760 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DataStructure/EquivClassGraphs.cpp b/lib/Analysis/DataStructure/EquivClassGraphs.cpp
index a778d94..7632200 100644
--- a/lib/Analysis/DataStructure/EquivClassGraphs.cpp
+++ b/lib/Analysis/DataStructure/EquivClassGraphs.cpp
@@ -270,8 +270,7 @@
         }
         
         // Clone this member of the equivalence class into MergedG.
-        DSGraph::NodeMapTy NodeMap;    
-        MergedG.cloneInto(CBUGraph, NodeMap);
+        MergedG.cloneInto(CBUGraph);
       }
       
       // Merge the return nodes of all functions together.
@@ -362,10 +361,7 @@
 
     // If the SCC found is not the same as those found in CBU, make sure to
     // merge the graphs as appropriate.
-    {
-      DSGraph::NodeMapTy NodeMap;
-      FG.cloneInto(*NG, NodeMap);
-    }
+    FG.cloneInto(*NG);
 
     // Update the DSInfo map and delete the old graph...
     for (DSGraph::retnodes_iterator I = NG->retnodes_begin();