* init.c (resolve_offset_ref): Handle default-initialization.
	* except.c (build_throw): Handle throwing NULL.
	* typeck.c (build_x_function_call): Use resolve_offset_ref.
	* search.c (compute_access): Only strip an anonymous union
	for a FIELD_DECL.
	* call.c (add_builtin_candidates): Tweak.
	* cvt.c (build_expr_type_conversion): Restore code for conversion
	from class types.
	* decl2.c (delete_sanity): Use it.  Clean up.
	* typeck.c (comp_ptr_ttypes_real): Fix cv-qual comparisons.
        * typeck.c (c_expand_return): Don't warn about void expressions on
        return statements in functions returning void.

From-SVN: r20399