Inadvertently run inferior threads

[Eli Zaretskii]

> Date: Sat, 14 Mar 2015 16:55:58 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: gdb@sourceware.org
> 
> > Otherwise, "(gdb) interrupt" would probably work.
> 
> Thanks, I will try using this next time.

It seems like 'interrupt' does nothing in native debugging of a target
that doesn't support async execution, at least on MS-Windows.  Is that
a bug, or is it expected?