trans-array.c (set_loop_bounds): Separate the beginning of gfc_conv_loop_setup into a function of its own.

	* trans-array.c (set_loop_bounds): Separate the beginning of
	gfc_conv_loop_setup into a function of its own.
	(set_delta): Separate the end of gfc_conv_loop_setup into a function
	of its own.
	(gfc_conv_loop_setup): Call set_loop_bounds and set delta.
	(set_loop_bounds, set_delta, gfc_conv_loop_setup): Make loopspec a
	pointer to the specloop field from the loop struct.

From-SVN: r180880