Add a new expression class, ObjCSuperExpr, to handle the Objective-C 'super'. Remove ObjCThis from PredefinedExpr

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58698 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
index ccc5008..e6636ba 100644
--- a/lib/CodeGen/CodeGenFunction.h
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -402,6 +402,7 @@
   LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E);
   LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E);
   LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E);
+  LValue EmitObjCSuperExpr(const ObjCSuperExpr *E);
 
   //===--------------------------------------------------------------------===//
   //                         Scalar Expression Emission