[development] Move all core modules into their own directories.

[Gabor Hojtsy]

Dries Buytaert wrote:
> 
> On 04 May 2006, at 18:15, Vladimir Zlatanov wrote:
> 
>> The cons, load/search times might increase. Maybe the maintenance
>> overhead.
> 
> Various people claim that the theme_ functions are necessary to get  the
> best performance out of Drupal.  Frankly, I'm not convinced that  is true.
> 
> If we go all the way and remove the theme functions from the .module 
> files, the PHP engine will have a lot less code to parse.  Take a 
> moment to think about it.  It is kind of a clean (but less  aggressive)
> implementation of Karoly's "split mode" patch.  Karoly  claims that
> "split mode" gives him an average performance gain of 40%  as well as
> significant memory reductions.
> 
> Maybe someone can modify Karoly's split mode patch (so that it only 
> splits out the theme_ functions), merge it with dir.php, and give it  a
> go?  It would be different from the final implementation, but it  would
> give us a pretty accurate indication as to whether we need to  keep the
> theme_ functions or not.

Indeed, some benchmarks would be nice instead of pushing our gut
feelings head to head :)

Goba