* cp-tree.h (scope_kind): Add new enumerator.
	(keep_next_level): Change parameter type to bool.
	(begin_scope):  Change prototype.
	(pushlevel): Remove declaration.
	* decl.c (push_binding_level): Fold in begin_scope.  Remove.
	(struct cp_binding_level): Remove tag_tranparent field.  Make keep
	of bitsize one.
	(keep_next_level_flag): Make a bool.
	(cxx_scope_descriptor): Update scope names table
	(make_cxx_scope): Fold in begin_scope.  Remove..
	(namespace_scope_ht_size): New function.
	(begin_scope): Change prototype.  Return a scope.  Tidy.
	(kept_level_p): Update.
	(pushlevel): Remove.
	(maybe_push_cleanup_level): Simplify.
	(poplevel): Update for sk_cleanup and keep change.
	(print_binding_level): Likewise.
	(initial_push_namespace_scope): Fold in begin_scope.  Remove.
	(push_namespace): Update.
	(pushtag): Likewise.
	(lookup_tag): Likewise.
	(lookup_name_current_level): Likewise.
	(lookup_type_current_level): Likewise.
	(cxx_init_decl_processing): Likewise.
	(start_function): Likewise.
	(begin_function_body): Likewise.
	(start_method): Likewise.
	* pt.c (push_inline_template_parms_recursive): Likewise.
	(begin_template_parm_list): Likewise.
	(begin_specialization): Likewise.
	* semantics.c (do_pushlevel): Likewise.
	(begin_compound_stmt): Likewise.
	(begin_stmt_expr): Likewise.

From-SVN: r71683