PR c++/26696

        * cvt.c (convert_to_void): Replace a subexpression with no side
        effects with void_zero_node.
        * tree.c (is_overloaded_fn): Look through COMPONENT_REF.
        (get_first_fn): Ditto.
        * decl.c (grokdeclarator): No need to look through COMPONENT_REF.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@116724 138bc75d-0d04-0410-961f-82ee72b054a4