* cp-tree.h (struct lang_type_header): Remove
	uses_multiple_inheritance field.
	(TYPE_USES_MULTIPLE_INHERITANCE): Remove.
	(TYPE_BASE_CONVS_MAY_REQUIRE_CODE_P): Remove.
	(TYPE_USES_VIRTUAL_BASECLASSES): Remove.
	(DECL_NEEDS_VTT_PARM_P): Use CLASSTYPE_VBASECLASSES.
	(TYPE_CONTAINS_VPTR_P): Likewise.
	* call.c (add_template_candidate_real): Use
	CLASSTYPE_VBASECLASSES.
	(build_special_member_call): Likewise.
	* class.c (finish_struct_bits): Remove
	TYPE_BASE_CONVS_MAY_REQUIRE_CODE_P & TYPE_USES_VIRTUAL_BASECLASSES
	bookkeeping.
	(check_bases_and_members): Use TYPE_CONTAINS_VPTR_P.
	(create_vtable_ptr): Remove TYPE_BASE_CONVS_MAY_REQUIRE_CODE_P
	bookkeeping.
	(build_vtt_inits): Use CLASSTYPE_VBASECLASSES.
	(accumulate_vtbl_inits, build_vbase_offset_vtbl_entries):
	Likewise.
	* decl.c (xref_basetypes): Remove TYPE_USES_MULTIPLE_INHERITANCE,
	TYPE_BASE_CONVS_MAY_REQUIRE_CODE_P, TYPE_USES_VIRTUAL_BASECLASSES
	bookkeeping.
	(cxx_maybe_build_cleanup): Use CLASSTYPE_VBASECLASSES.
	* decl2.c (maybe_retrofit_in_chrg): Likewise.
	* init.c (expand_member, push_base_cleanups): Likewise.
	* pt.c (instantiate_class_template): Remove
	TYPE_USES_MULTIPLE_INHERITANCE,
	TYPE_BASE_CONVS_MAY_REQUIRE_CODE_P, TYPE_USES_VIRTUAL_BASECLASSES
	bookkeeping.
	* ptree.c (cxx_print_type): Remove TYPE_USES_MULTIPLE_INHERITANCE
	check.
	* typeck2.c (process_init_constructor): Replace some sorrys with
	asserts.

From-SVN: r87808