backport: re PR fortran/78641 ([OOP] ICE on polymorphic allocatable function in array...

backport: re PR fortran/78641 ([OOP] ICE on polymorphic allocatable function in array constructor)

2017-11-06  Paul Thomas  <pault@gcc.gnu.org>

	Backported from trunk
	PR fortran/78641
	* resolve.c (resolve_ordinary_assign): Do not add the _data
	component for class valued array constructors being assigned
	to derived type arrays.
	* trans-array.c (gfc_trans_array_ctor_element): Take the _data
	of class valued elements for assignment to derived type arrays.

2017-11-06  Paul Thomas  <pault@gcc.gnu.org>

	Backported from trunk
	PR fortran/78641
	* gfortran.dg/class_66.f90: New test.

From-SVN: r254449