Add undefined array subscript checker.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86837 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/GRExprEngineInternalChecks.cpp b/lib/Analysis/GRExprEngineInternalChecks.cpp
index ea508a0..984526c 100644
--- a/lib/Analysis/GRExprEngineInternalChecks.cpp
+++ b/lib/Analysis/GRExprEngineInternalChecks.cpp
@@ -415,4 +415,5 @@
 
   RegisterCastToStructChecker(*this);
   RegisterArrayBoundChecker(*this);
+  RegisterUndefinedArraySubscriptChecker(*this);
 }