* decl.c (struct cp_function): Add named_label_uses.
	(push_cp_function_context): Save it.
	(pop_cp_function_context): Restore it.
	(define_label): Also complain about jumping into the scope of
	non-POD objects that don't have constructors.
	* tree.c (pod_type_p): New fn.
Fixes g++.other/init9.C
	* pt.c (instantiate_class_template): Clear TYPE_BEING_DEFINED sooner.
	* rtti.c (synthesize_tinfo_fn): Call import_export_decl here.
	(get_tinfo_fn): Not here.
	* repo.c (repo_get_id): Abort if we get called for an incomplete
	type.
Fixes g++.pt/instantiate4.C

From-SVN: r23667