* objc-act.c (objc_build_constructor): Take a VEC instead of a tree.
	Use build_constructor instead of build_constructor_from_list.
	(objc_build_string_object): Build a VEC argument for
	objc_build_constructor.
	(init_def_list): Likewise.
	(init_objc_symtab): Likewise.
	(init_module_descriptor): Likewise.
	(generate_static_references): Likewise.
	(build_selector_translation_table): Likewise.
	(build_descriptor_table_initializer): Likewise.
	(generate_descriptor_table): Likewise.
	(build_protocol_initializer): Likewise.
	(build_ivar_list_initializer): Likewise.
	(generate_ivars_list): Likewise.
	(build_dispatch_table_initializer): Likewise.
	(generate_dispatch_table): Likewise.
	(generate_protocol_list): Likewise.
	(build_category_initializer): Likewise.
	(build_shared_structure_initializer): Likewise.
	(generate_objc_image_info): Likewise.

From-SVN: r159821