Theoretically this patch will remove the hard-coded limit of 9 com ports
recognized by Insight on windows.  I don't know how to get a list of
valid ports, so the new code just keeps incrementing the port number and
trying to open the port until an open fails. If anyone has more than 4
serial ports, I would appreciate it if you would test this.

2003-02-03  Martin M. Hunt  <hunt@redhat.com>

	* library/targetselection.itb (TargetSelection::port_list): Keep
	checking ports on Windows until we can open no more. Replaces
	fixed limit of 9.