[COMMITTED] Bug 18589: Revert strcoll optimization using strdiff.

[Carlos O'Donell]

On 10/13/2015 01:41 AM, Leonhard Holz wrote:
> Sorry for coming up late with that, but the UTF-8 detection part is
> needed in the patch for #18441. How can I handle this correctly?
> 
> Maybe it is also possible to fix the STRDIFF-patch.

To fix the STRDIFF patch you would have to advance by units of
comparison including advancing by entire digraphs. It would slow
down the fast-forward pass, and you would have to see if it makes
it feasible to use.

Cheers,
Carlos.