Re: objc/objc++: fix most testsuite failures on darwin8

[Nicola Pero]

This patch (written with Iain) fixes all the testsuite failiures on Darwin8.  
It includes the previous one.

OK to commit ?

Thanks

Index: ChangeLog
===================================================================
--- ChangeLog   (revision 174760)
+++ ChangeLog   (working copy)
@@ -1,3 +1,18 @@
+2011-06-07  Nicola Pero  <nicola.p...@meta-innovation.com>
+           Iain Sandoe  <ia...@gcc.gnu.org>
+
+       * objc-obj-c++-shared/runtime.h (protocol_getMethodDescription):
+       Added code to deal with the case when [Protocol
+       -descriptionForInstanceMethod:] or [Protocol
+       -descriptionForClassMethod:] returns NULL.
+
+2011-06-07  Nicola Pero  <nicola.p...@meta-innovation.com>
+           Iain Sandoe  <ia...@gcc.gnu.org>
+
+       * objc-obj-c++-shared/TestsuiteObject.h ([-free]): Return 'id'.
+       * objc-obj-c++-shared/TestsuiteObject.m ([-free]): Return 'id'.
+       Added cast.
+       
 2011-06-07  Rainer Orth  <r...@cebitec.uni-bielefeld.de>
 
        gcc/testsuite:
Index: objc-obj-c++-shared/TestsuiteObject.h
===================================================================
--- objc-obj-c++-shared/TestsuiteObject.h       (revision 174761)
+++ objc-obj-c++-shared/TestsuiteObject.h       (working copy)
@@ -35,7 +35,7 @@ along with GCC; see the file COPYING3.  If not see
 + (id) new;
 + (id) alloc;
 - (id) init;
-- (void) free;
+- (id) free;
 
 /* Auxiliary methods.  */
 + (Class) class;
Index: objc-obj-c++-shared/runtime.h
===================================================================
--- objc-obj-c++-shared/runtime.h       (revision 174761)
+++ objc-obj-c++-shared/runtime.h       (working copy)
@@ -93,14 +93,16 @@ struct objc_method_description protocol_getMethodD
   struct objc_method_description result;
 
   if (instanceMethod)
-    {
-      tmp = [protocol descriptionForInstanceMethod: selector];
-      result = *tmp;
-    }
+    tmp = [protocol descriptionForInstanceMethod: selector];
   else
+    tmp = [protocol descriptionForClassMethod: selector];
+
+  if (tmp)
+    result = *tmp;
+  else
     {
-      tmp = [protocol descriptionForClassMethod: selector];
-      result = *tmp;      
+      result.name = (SEL)0;
+      result.types = (char *)0;
     }
 
   return result;
Index: objc-obj-c++-shared/TestsuiteObject.m
===================================================================
--- objc-obj-c++-shared/TestsuiteObject.m       (revision 174761)
+++ objc-obj-c++-shared/TestsuiteObject.m       (working copy)
@@ -41,9 +41,14 @@ along with GCC; see the file COPYING3.  If not see
 {
   return self;
 }
-- (void) free
+/* We return 'id' to have the same signature as [Object -free] in
+   older runtimes and avoid warnings about conflicting signatures.  */
+- (id) free
 {
-  object_dispose (self);
+  /* Cast 'self' to 'id' because the NeXT runtime in darwin8 (Apple
+     Mac OS X 10.4) declares object_dispose to take an "Object *"
+     argument.  */
+  return object_dispose ((id)self);
 }
 + (Class) class
 {