* except.c (expand_start_eh_spec): Use the try/catch code.
	(expand_end_eh_spec): Likewise.  Call __check_eh_spec instead of
	doing everything inline.
	(init_exception_processing): throw_type_match now takes
 	const void pointers.
	* exception.cc (__check_eh_spec): New fn.
	* inc/exception: Neither terminate nor unexpected return.
	* decl.c: Make const_ptr_type_node public.
	* tinfo2.cc (__throw_type_match_rtti): Take the typeinfos constly.

From-SVN: r16651