<rdar://problem/15263540>

Added a new key that we understand for the "qHostInfo" packet: "default_packet_timeout:T;" where T is a default packet timeout in seconds.

This allows GDB servers with known slow packet response times to increase the default timeout to a value that makes sense for the connection.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@193425 91177308-0d34-0410-b5e6-96231b3b80d8