vec.h: Propagate location information properly.

vec.h: Propagate location information properly.

.:	* vec.h: Propagate location information properly.
	(VEC_T_iterate): Add result pointer parameter.
	(VEC_T_space): New.
	(VEC_T_reserve): Use it.
cp:
	* class.c (add_method): Delay adding the slot until the end.
	(determine_primary_base): Adjust VEC_iterate invokation.
	(resort_type_method_vec, finish_struct_methods, warn_hidden,
	walk_subobject_offsets, end_of_class, warn_about_ambiguous_bases,
	build_vtbl_initializer): Likewise.
	* init.c (sort_mem_initializers, build_delete, push_base_cleanups,
	build_vbase_delete): Likewise.
	* method.c (do_build_copy_constructor): Likewise.
	* name-lookup.c (new_class_binding, print_binding_level,
	poplevel_class, store_class_bindings, push_to_top_level,
	pop_from_top_level): Likewise.
	* pt.c (check_explicit_specialization): Likewise.
	* search.c (lookup_conversion_operator, lookup_fnfields_1,
	get_pure_virtuals, add_conversions, dfs_check_overlap,
	binfo_for_vbase): Likewise.

From-SVN: r84924