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diff --git a/gcc-4.9/gcc/testsuite/obj-c++.dg/class-extension-1.mm b/gcc-4.9/gcc/testsuite/obj-c++.dg/class-extension-1.mm
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+++ b/gcc-4.9/gcc/testsuite/obj-c++.dg/class-extension-1.mm
@@ -0,0 +1,30 @@
+/* Contributed by Nicola Pero <nicola.pero@meta-innovation.com>, December 2010. */
+/* { dg-do compile } */
+
+/* This test tests the basic of class extensions. */
+
+#include <objc/objc.h>
+
+@interface MyObject
+{
+ Class isa;
+}
+- (int) test;
+@end
+
+@interface MyObject ()
+- (int) test2;
+- (int) test3;
+@end
+
+@implementation MyObject
+- (int) test
+{
+ return 20;
+}
+- (int) test2
+{
+ return 20;
+}
+@end /* { dg-warning "incomplete implementation of class .MyObject." } */
+ /* { dg-warning "method definition for .-test3. not found" "" { target *-*-* } 29 } */