implement codegen support for implicit casts.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@39831 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CodeGen/CodeGenFunction.h b/CodeGen/CodeGenFunction.h
index 7a07f25..7479743 100644
--- a/CodeGen/CodeGenFunction.h
+++ b/CodeGen/CodeGenFunction.h
@@ -313,7 +313,7 @@
   RValue EmitFloatingLiteral(const FloatingLiteral *E);
   RValue EmitCharacterLiteral(const CharacterLiteral *E);
    
-  RValue EmitCastExpr(const CastExpr *E);
+  RValue EmitCastExpr(const Expr *Op, QualType DestTy);
   RValue EmitCallExpr(const CallExpr *E);
   RValue EmitArraySubscriptExprRV(const ArraySubscriptExpr *E);