* gcc-interface/trans.c: Include tree-flow.h.
	(gnu_switch_label_stack): Delete.
	(Case_Statement_to_gnu): Do not emit the goto at the end of a case if
	its associated block cannot fall through.  Do not emit the final label
	if no cases branche to it.
	* gcc-interface/Make-lang.in (ada/trans.o): Add $(TREE_FLOW_H).

From-SVN: r161461