Use Stmt* instead of Expr* for block-level expression.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59161 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/LiveVariables.cpp

@@ -157,7 +157,7 @@ void TransferFuncs::Visit(Stmt *S) {
   
 void TransferFuncs::VisitTerminator(CFGBlock* B) {
     
-  const Expr* E = B->getTerminatorCondition();
+  const Stmt* E = B->getTerminatorCondition();
 
   if (!E)
     return;