* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Array_Type>: Pass

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Array_Type>: Pass
	correct arguments to create_field_decl.  Remove redundant iteration.
	Rewrite computation of the maximum size.
	<E_Array_Subtype>: Reorder and simplify handling of special cases.
	Rewrite computation of the maximum size.  Use consistent naming.
	* gcc-interface/trans.c (Attribute_to_gnu) <Attr_Length>: Swap
	comparison order for consistency.  Use generic integer node to
	build the operator and fold the result.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@148962 138bc75d-0d04-0410-961f-82ee72b054a4