New function should_print_stop_to_console

New function should_print_stop_to_console

There's code in the MI interpreter that decides whether a stop should
be sent to MI's console stream.  Move this check to the CLI
interpreter code, so that we can reuse it in both the CLI and TUI
interpreters.

gdb/ChangeLog:
2016-06-21  Pedro Alves  <palves@redhat.com>

	* cli/cli-interp.c: Include gdbthread.h and thread-fsm.h.
	(should_print_stop_to_console): New function, factored out from
	mi_on_normal_stop_1.
	* cli/cli-interp.h (should_print_stop_to_console): Declare.
	* mi/mi-interp.c (mi_on_normal_stop_1): Use
	should_print_stop_to_console.  Pass it the current UI's console
	interpreter.
	* mi/mi-main.c (captured_mi_execute_command): Use the
	INTERP_CONSOLE symbol rather than explicit "console".