re PR libgcj/5696 (natClass.cc run through superclasses of target if they exist while comparing variable types.)

	Fix for PR libgcj/5696:
	* verify.cc (is_assignable_from_slow): Never call
	_Jv_IsAssignableFrom.
	(verify_instructions_0): Added new debug statement.
	(state::print): Print information about whether local has
	changed.
	(state::merge): Don't call note_variable when merging locals.
	(state::set_exception): Removed old FIXME comment.

From-SVN: r49886