* except.c (can_throw_internal_1, can_throw_external_1): Add
	"is_resx" argument.
	(can_throw_external, can_throw_internal): Bring into sync wrt
	dealing resx.
	* except.h (can_throw_internal_1, can_throw_external_1): Update
	prototype.
	* tree-eh.c (tree_can_throw_internal, tree_can_throw_external):
	Deal properly with resx.

From-SVN: r100282