Add support for new style casts


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@694 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/Expressions.cpp b/lib/Analysis/Expressions.cpp
index 2235cda..a6f889f 100644
--- a/lib/Analysis/Expressions.cpp
+++ b/lib/Analysis/Expressions.cpp
@@ -233,7 +233,7 @@
     return Expr;
   }
   
-  Instruction *I = Expr->castInstructionAsserting();
+  Instruction *I = cast<Instruction>(Expr);
   const Type *Ty = I->getType();
 
   switch (I->getOpcode()) {       // Handle each instruction type seperately