* gcc-interface/trans.c (gnat_to_gnu) <N_Aggregate>: Minor tweak.
	* gcc-interface/utils.c (convert): Do not pad when doing an unchecked
	conversion here.  Use TREE_CONSTANT throughout the function.
	(unchecked_convert): Also pad if the source is a CONSTRUCTOR and the
	destination is a more aligned array type or a larger aggregate type,
	but not between original and packable versions of a type.

From-SVN: r268679