PR tree-optimization/88107
	* tree-cfg.c (find_outermost_region_in_block): Add ALL argument,
	instead of assertion that eh_region_outermost is non-NULL, if it
	is NULL, set *ALL to true and return NULL.
	(move_sese_region_to_fn): Adjust caller, if all is set, call
	duplicate_eh_regions with NULL region.

	* gcc.dg/gomp/pr88107.c: New test.

From-SVN: r268444