constify MemRegion* returned by MemRegionManager::getXXXRegion() methods.

llvm-svn: 90503
diff --git a/clang/lib/Analysis/ValueManager.cpp b/clang/lib/Analysis/ValueManager.cpp
index 22a8211..1e7a5fc 100644
--- a/clang/lib/Analysis/ValueManager.cpp
+++ b/clang/lib/Analysis/ValueManager.cpp
@@ -138,15 +138,14 @@
 }
 
 DefinedSVal ValueManager::getFunctionPointer(const FunctionDecl* FD) {
-  CodeTextRegion *R  = MemMgr.getFunctionTextRegion(FD);
-  return loc::MemRegionVal(R);
+  return loc::MemRegionVal(MemMgr.getFunctionTextRegion(FD));
 }
 
 DefinedSVal ValueManager::getBlockPointer(const BlockDecl *D,
                                           CanQualType locTy,
                                           const LocationContext *LC) {
-  BlockTextRegion *BC = MemMgr.getBlockTextRegion(D, locTy);
-  BlockDataRegion *BD = MemMgr.getBlockDataRegion(BC, LC);
+  const BlockTextRegion *BC = MemMgr.getBlockTextRegion(D, locTy);
+  const BlockDataRegion *BD = MemMgr.getBlockDataRegion(BC, LC);
   return loc::MemRegionVal(BD);
 }