[Ada] Housekeeping work in gigi (15/n)

[Eric Botcazou]

Tested on i586-suse-linux, applied on the mainline.


2009-09-08  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Array_Subtype>: Tidy
	flow of control.
	Avoid useless work when processing the Treat_As_Volatile flag.


-- 
Eric Botcazou
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