* trans-array.h (struct gfc_se): New flag want_coarray.
	* trans-intrinsic.c (trans_this_image, trans_image_index,
	conv_intrinsic_cobound): Set want_coarray.
	* trans_array.c (gfc_conv_expr_descriptor): Evaluate codimension
	earlier and without relying on the scalarizer.

From-SVN: r179676