[poppler] XRef::addIndirectObject should not use entries with gen == 65535

[Albert Astals Cid]

El Dissabte, 21 d'abril de 2012, a les 21:51:46, Fabio D'Urso va escriure:
> From PDF specs (Syntax > File Structure > Cross reference table):
>  The maximum generation number is 65,535; when a cross-reference entry
> reaches this value, it shall never be reused.
> 
> This patch adds a check for this condition.

Commited.

Albert