Correctly invalidate reference count state when passing objects by reference in message expressions we don't understand.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50541 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ValueState.cpp b/lib/Analysis/ValueState.cpp
index 19ff06f..96b94ea 100644
--- a/lib/Analysis/ValueState.cpp
+++ b/lib/Analysis/ValueState.cpp
@@ -203,6 +203,12 @@
       
       return UnknownVal();
     }
+    
+    case lval::ConcreteIntKind:
+      // Some clients may call GetRVal with such an option simply because
+      // they are doing a quick scan through their LVals (potentially to
+      // invalidate their bindings).  Just return Undefined.
+      return UndefinedVal();
       
     case lval::ArrayOffsetKind:
     case lval::FieldOffsetKind: