[PATCH] dwrite: Handle memory allocation failures in bidi_compute_bracket_pairs (cppcheck)

[Nikolay Sivov]

I think it's better to simplify this by removing some stuff, rather than 
adding more. It should work as well if you simply allocated 
((iso_run->length / 2) + 1) pairs at once, unconditionally. I propose to 
do that, after wine 7.0.