* gcc-interface/decl.c (gnat_to_gnu_entity) <object>: Convert GNU_SIZE
	to units before invoking allocatable_size_p on it.
	Remove orphaned comment.  Do not use ssize_int.
	<E_Record_Subtype>: Traverse list in original order.  Minor tweak.
	(allocatable_size_p): Adjust and simplify.
	(build_subst_list): Use consistent terminology throughout.
	(build_variant_list): Likewise.  Traverse list in original order.
	(create_field_decl_from): Likewise.
	(copy_and_substitute_in_size): Likewise.
	(create_variant_part_from): Add comment about field list order.
	* gcc-interface/utils.c (build_vms_descriptor): Do not use ssize_int.
	* gcc-interface/utils2.c (build_allocator): Likewise.

From-SVN: r188382