Fixed bug where LiveVariables was not properly propagating updates to liveness
state that occurred in subexpressions of Block-Level expressions. Bug and fix
provided by Nuno Lopes.

llvm-svn: 44224
diff --git a/clang/Analysis/LiveVariables.cpp b/clang/Analysis/LiveVariables.cpp
index f37239a..3118a30 100644
--- a/clang/Analysis/LiveVariables.cpp
+++ b/clang/Analysis/LiveVariables.cpp
@@ -162,7 +162,7 @@
   
 void TransferFuncs::BlockStmt_VisitExpr(Expr* E) {
   assert (AD.getCFG().isBlkExpr(E));
-  static_cast<CFGStmtVisitor<TransferFuncs>*>(this)->Visit(E);
+  VisitChildren(E);
 }
   
 } // end anonymous namespace