In gcc/objc/:
2010-11-11  Nicola Pero  <nicola.pero@meta-innovation.com>

        * objc-act.c (objc_add_property_declaration): Check that the type
        of a property and of an inherited property match.
        (objc_maybe_build_component_ref): Tidied up indentation and
        comments.
        (objc_common_type): Added new type of check (-5).  If an unknown
        class is involved in a comparison, try to look up its interface.
        (objc_add_synthesize_declaration_for_property): Check that the
        property to synthesize and the instance variable to use have the
        same type.

In gcc/testsuite/:
2010-11-11  Nicola Pero  <nicola.pero@meta-innovation.com>

        * objc.dg/property/at-property-20.m: New.
        * objc.dg/property/synthesize-8.m: New.
        * obj-c++.dg/property/at-property-20.m: New.
        * obj-c++.dg/property/synthesize-8.mm: New.

From-SVN: r166612