931fe56586
Updates #19050 When tsnet.Server.start() is called with both Hostname and Dir explicitly set, os.Executable() failure should not prevent the server from starting. Extend the existing ios fallback to also cover darwin, where the same failure occurs when the Go runtime is embedded in a framework launched via Xcode's debug launcher. Signed-off-by: Prakash Rudraraju <prakashrj@yahoo.com>