* gcc-interface/decl.c (gnat_to_gnu_entity, case E_Function): Allow
	In Out/Out parameters for functions.
	* gcc-interface/trans.c (gnu_return_var_stack): New variable.
	(create_init_temporary): New static function.
	(Subprogram_Body_to_gnu): Handle In Out/Out parameters for functions.
	(call_to_gnu): Likewise.  Use create_init_temporary in order to create
	temporaries for unaligned parameters and return value.  If there is an
	unaligned In Out or Out parameter passed by reference, push a binding
	level if not already done.  If a binding level has been pushed and the
	call is returning a value, create the call statement.
	(gnat_to_gnu) <N_Return_Statement>: Handle In Out/Out parameters for
	functions.

From-SVN: r165914