Because we load the interceptor inside a jdwp callback, we can timeout.

[AWoloszyn]

In jdwp.go we have a hard timeout of 30 seconds, but if we have a machine with a particularly large number of symbols, that is particularly slow (ESPECIALLY if we are running in debug, and logging stuff), we can timeout here.

case <-time.After(time.Second * 30):
  return fmt.Errorf("timeout")
}

[AWoloszyn]

Quadrupled the timeout in #1222. This should handle most of the cases.