MemRegion can refer to ASTContext without external help.

llvm-svn: 110784
diff --git a/clang/lib/Checker/ArrayBoundChecker.cpp b/clang/lib/Checker/ArrayBoundChecker.cpp
index 746b3f9..98345bd 100644
--- a/clang/lib/Checker/ArrayBoundChecker.cpp
+++ b/clang/lib/Checker/ArrayBoundChecker.cpp
@@ -58,7 +58,7 @@
   // Get the size of the array.
   DefinedOrUnknownSVal NumElements 
     = C.getStoreManager().getSizeInElements(state, ER->getSuperRegion(), 
-                                         ER->getValueType(C.getASTContext()));
+                                            ER->getValueType());
 
   const GRState *StInBound = state->AssumeInBound(Idx, NumElements, true);
   const GRState *StOutBound = state->AssumeInBound(Idx, NumElements, false);