[PATCH 2/3] msvcrt: Implement Concurrency::event

[Daniel Lehman]

> Nevertheless, after more careful reviewing in your patch, it looks like
handles are never really exposed to the application, is that correct? 

correct

> I'm not really sure why you need a separate thread then. Why does event_set for
example not wake up the the pending waits directly? You have to be careful
when locking multiple critical sections, but I do not see any reason why it
shouldn't be possible.

i'll send one without