Small fix to VisitLVal: this method can be called on Block-Level expressions. 
In such cases, handle them just like Visit().


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47665 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Analysis/GRExprEngine.cpp b/Analysis/GRExprEngine.cpp
index 758e038..86bd270 100644
--- a/Analysis/GRExprEngine.cpp
+++ b/Analysis/GRExprEngine.cpp
@@ -887,8 +887,11 @@
 }
 
 void GRExprEngine::VisitLVal(Expr* Ex, NodeTy* Pred, NodeSet& Dst) {
-  
-  assert (Ex != CurrentStmt && !getCFG().isBlkExpr(Ex));
+
+  if (Ex != CurrentStmt && getCFG().isBlkExpr(Ex)) {
+    Dst.Add(Pred);
+    return;
+  }
   
   Ex = Ex->IgnoreParens();