Remove the the block_node_iterator of Region, replace it by the block_iterator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162672 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/RegionPass.cpp b/lib/Analysis/RegionPass.cpp
index c97b5eb..9208fa2 100644
--- a/lib/Analysis/RegionPass.cpp
+++ b/lib/Analysis/RegionPass.cpp
@@ -195,10 +195,9 @@
 
   virtual bool runOnRegion(Region *R, RGPassManager &RGM) {
     Out << Banner;
-    for (Region::block_node_iterator I = R->block_node_begin(),
-                                     E = R->block_node_end();
+    for (Region::block_iterator I = R->block_begin(), E = R->block_end();
          I != E; ++I)
-      (*I)->getEntry()->print(Out);
+      (*I)->print(Out);
 
     return false;
   }