New testcases

From-SVN: r82620

gcc/testsuite/objc/execute/protocol-isEqual-1.m

+/* Contributed by Nicola Pero - Fri Jun  4 03:16:17 BST 2004 */
+/* Test that a protocol is equal to itself.  */
+#include <objc/Protocol.h>
+
+@protocol Foo
+- (void)foo;
+@end
+
+int main (void)
+{
+  Protocol *protocol = @protocol(Foo);
+
+  if (! [protocol isEqual: protocol])
+    {
+      abort ();
+    }
+  
+  return 0;
+}
+

gcc/testsuite/objc/execute/protocol-isEqual-2.m

+/* Contributed by Nicola Pero - Fri Jun  4 03:16:17 BST 2004 */
+/* Test that protocols with different names are different.  */
+#include <objc/Protocol.h>
+
+@protocol Foo1
+- (void)foo1;
+@end
+
+@protocol Foo2
+- (void)foo2;
+@end
+
+int main (void)
+{
+  if ([@protocol(Foo1) isEqual: @protocol(Foo2)])
+    {
+      abort ();
+    }
+  
+  return 0;
+}
+

gcc/testsuite/objc/execute/protocol-isEqual-3.m

+/* Contributed by Nicola Pero - Fri Jun  4 03:16:17 BST 2004 */
+/* Test that a protocol is not equal to nil.  */
+#include <objc/Protocol.h>
+
+@protocol Foo
+- (void)foo;
+@end
+
+int main (void)
+{
+  if ([@protocol(Foo) isEqual: nil])
+    {
+      abort ();
+    }
+  
+  return 0;
+}
+

gcc/testsuite/objc/execute/protocol-isEqual-4.m

+/* Contributed by David Ayers - Fri Jun  4 03:16:17 BST 2004 */
+/* Test that a protocol is not equal to something which is not a protocol.  */
+#include <objc/Protocol.h>
+
+@protocol Foo
+- (void)foo;
+@end
+
+int main (void)
+{
+  /* A Protocol object should not be equal to a Class object.  */
+  if ([@protocol(Foo) isEqual: [Protocol class]])
+    {
+      abort ();
+    }
+  
+  return 0;
+}
+