m_interrupt_sent wasn't being initialized, and wasn't being reset after an
interrupt.  Do both of those.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@206350 91177308-0d34-0410-b5e6-96231b3b80d8
Clean up the logic in setting timeouts a bit, and the logging as well.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@206351 91177308-0d34-0410-b5e6-96231b3b80d8