[Ada] Adjust a couple of testcases

[Eric Botcazou]

This adjusts a couple of testcases to make them more robust... and show that 
they don't pass anymore on the mainline.

Tested on i586-suse-linux, applied on the mainline, 4.5 and 4.4 branches.


2010-11-28  Eric Botcazou  <ebotcazou@adacore.com>

	* gnat.dg/aliasing2.adb (dg-final): Robustify pattern matching.
	* gnat.dg/pack9.adb (dg-final): Likewise.


-- 
Eric Botcazou
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