We already use it in the __wine_spec_callfrom16_* functions.

Presumably at one point there were assemblers that choked on
these. However, currently we use segment prefixes elsewhere in
wine (namely, in the syscall dispatcher), and it seems fair to assume
that a sane compiler should support them.

Fixes a warning on GCC 13.

Based on a patch by Austin English.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52868

Fixes regression introduced by 256c3445.

XACTNOTIFICATIONTYPE_WAVEBANKSTREAMING_INVALIDCONTENT is defined as 18.

The application again the bug, passed 1 as the elem parameter which
doubled the memory being allocated.  When it overflowed (became negative),
the value was passed into GlobalAlloc16 which then failed.

GlobalAlloc16 takes a DWORD parameter, so the value isn't going to be truncated.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53092

Original patch by github user cracyc for winevdm.

Their prototypes are not meaningful on the Unix side.

And convert to the sysv ABI.

Instead of constraining the output caps to the current resolution, which
breaks when streams with different resolutions are concatenated.

And remove h264parse element requirement.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54599