* gimple-fold.c (static_object_in_other_unit_p): Rename to...
	(can_refer_decl_in_current_unit_p): ... this one; reverse return
	value; handle comdats too.
	(canonicalize_constructor_val): Use it; handle function_decls
	correctly.
	(gimple_fold_obj_type_ref_known_binfo): Likewise.
	* gimple.c (get_base_address): Accept all kinds of decls.

From-SVN: r164961