Map this to WINED3DSIH_BREAKP because it's a better fit.

Reported by Dan Kegel

Reverts b474649e. Some games use
pointers to the guid rather than copying the guid even after the
enumeration function returns. Allocating on the stack breaks those
games.

Perhaps the code should also just double the buffer. I can send another patch
for that if needed.

It doesn't make sense to only do this when the buffer is resized.

Found by Valgrind.