bidi: endless loop

[Lars Knoll]

Hi Dirk,

I didn't go through the patch in detail, but I've been testing it quite a bit 
now (using it for two days and running it through browserbuster for quite a 
while). Seems to work fine, so I don't think it'll break anything.

Cheers,
Lars

> Hi,
>
> the addition of linebreaking between replaced elements produced a situation
> of endless loops sometimes, like here:
>
> <div style=width:2;white-space:pre><input>
>
> below is a patch that fixes this error, together with a huge amount of
> whitespace related fixes (ran throgh my testcollection and fixed all the
> regressions). It looks okay to me, but I only firmly tested it as I'm
> currently using dialup which is rather expensive :)
>
> please review / test patch, we should fix this before 3.1 final, given how
> easy this is to trigger (there is a bugreport about that marked critical).