Add target_ops argument to to_terminal_info

Add target_ops argument to to_terminal_info

2014-02-19  Tom Tromey  <tromey@redhat.com>

	* target.h (struct target_ops) <to_terminal_info>: Add argument.
	(target_terminal_info): Add argument.
	* target.c (debug_to_terminal_info): Add argument.
	(default_terminal_info): Likewise.
	* inflow.c (child_terminal_info): Add 'self' argument.
	* inferior.h (child_terminal_info): Add 'self' argument.
	* go32-nat.c (go32_terminal_info): Add 'self' argument.