I proposed combining them
quite some time ago so silly issues like this didn't occur anymore. It was an unpopular idea. Thus, they remained as separate entities. There is no way to convert entries between the two, nor cross locate results between sections.
Being that they are still separate, it seems like the most logical and clear rule to differentiate between the two is the patch must translate something from one language to another to belong in the Translations section. Anything else is just a plain text hack.
In the event you need to reclassify any entries that are filed inappropriately, you'd need to create the appropriate entry, get it approved, and then flag the original incorrect entry as non-compliant. That should do it.
Perhaps it would be nice if the Game pages actually listed all the associated material on the right hand side under the review. I guess it might look similar to the Community pages.
. However, it might be a little long and disheveled for popular games that had a very long review and many hacks, translations etc. similar to this community entry