Use utility method.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75745 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/RegionStore.cpp b/lib/Analysis/RegionStore.cpp
index 1dc5118..661f84f 100644
--- a/lib/Analysis/RegionStore.cpp
+++ b/lib/Analysis/RegionStore.cpp
@@ -814,7 +814,7 @@
   
   if (isa<SymbolicRegion>(MR)) {
     ASTContext &Ctx = getContext();
-    SVal idx = ValMgr.makeIntVal(0, Ctx.IntTy);
+    SVal idx = ValMgr.makeZeroArrayIndex();
     assert(!T.isNull());
     MR = MRMgr.getElementRegion(T, idx, MR, Ctx);
   }