pr58041.c (foo): Accept z by reference.

2013-08-06  Martin Jambor  <mjambor@suse.cz>
	    Bernd Edlinger <bernd.edlinger@hotmail.de>

testsuite/
	* gcc.dg/torture/pr58041.c (foo): Accept z by reference.
	(a): Fix constructor.


Co-Authored-By: Bernd Edlinger <bernd.edlinger@hotmail.de>

From-SVN: r201538