Update for RegionInfo changes.

Mostly related to missing includes and renaming of
the pass to RegionInfoPass.

llvm-svn: 213457
diff --git a/polly/lib/Support/ScopHelper.cpp b/polly/lib/Support/ScopHelper.cpp
index 3e3a535..15adf2d 100644
--- a/polly/lib/Support/ScopHelper.cpp
+++ b/polly/lib/Support/ScopHelper.cpp
@@ -121,6 +121,6 @@
 
   // SplitBlock updates DT, DF and LI.
   BasicBlock *NewEntry = SplitBlock(EntryBlock, I, P);
-  if (RegionInfo *RI = P->getAnalysisIfAvailable<RegionInfo>())
-    RI->splitBlock(NewEntry, EntryBlock);
+  if (RegionInfoPass *RIP = P->getAnalysisIfAvailable<RegionInfoPass>())
+    RIP->getRegionInfo().splitBlock(NewEntry, EntryBlock);
 }