Add check for pointer arithmetic on non-array variables.

llvm-svn: 86538
diff --git a/clang/lib/Analysis/GRExprEngineInternalChecks.cpp b/clang/lib/Analysis/GRExprEngineInternalChecks.cpp
index 41bb655..ee82969 100644
--- a/clang/lib/Analysis/GRExprEngineInternalChecks.cpp
+++ b/clang/lib/Analysis/GRExprEngineInternalChecks.cpp
@@ -413,6 +413,7 @@
   RegisterReturnStackAddressChecker(*this);
   RegisterReturnUndefChecker(*this);
   RegisterPointerSubChecker(*this);
+  RegisterPointerArithChecker(*this);
   RegisterFixedAddressChecker(*this);
   // Note that this must be registered after ReturnStackAddressChecker.
   RegisterReturnPointerRangeChecker(*this);