Fixed bug in RemoveDeadBindings when performing the mark-and-sweep over the
symbolic store: VarDecl's inserted into the sweep may not always bind to
anything; handle this special case just like bindings to uninitialized values.

llvm-svn: 47550
diff --git a/clang/Analysis/ValueState.cpp b/clang/Analysis/ValueState.cpp
index 3cbcd88d..75f719a 100644
--- a/clang/Analysis/ValueState.cpp
+++ b/clang/Analysis/ValueState.cpp
@@ -95,11 +95,9 @@
     
     if (V->getType()->isPointerType()) {
       
-      RVal X = GetRVal(St, lval::DeclVal(cast<VarDecl>(V)));
+      RVal X = GetRVal(St, lval::DeclVal(cast<VarDecl>(V)));      
       
-      assert (!X.isUnknown());
-      
-      if (X.isUninit())
+      if (X.isUnknownOrUninit())
         continue;
       
       LVal LV = cast<LVal>(X);