gdb/

gdb/
	* breakpoint.c (save_breakpoints): Use RETURN_MASK_ALL.
	* cli-out.c: Include vec.h.
	(cli_field_fmt, cli_spaces, cli_text, cli_message, cli_flush): New
	variable stream, initialize it, use it.
	(cli_redirect): New function comment.  Replace the stream and
	original_stream fields by the new streams field.  Remove the
	original_stream != NULL conditional, assert error on NULL instead.
	(out_field_fmt, field_separator): New variable stream, initialize it, use it.
	(cli_out_data_ctor): Assert non-NULL stream.  Replace the stream and
	original_stream fields by the new streams field.
	(cli_out_set_stream): Replace the stream field by the new streams
	field.
	* cli-out.h: Include vec.h.
	(ui_filep): New typedef, call DEF_VEC_P for it.
	(struct cli_ui_out_data): Replace the stream and original_stream
	fields by the new streams field.
	* cli/cli-logging.c (set_logging_redirect): Call ui_out_redirect with
	NULL first.  Extend the comment.
	(handle_redirections): Call ui_out_redirect with output.
	* python/py-breakpoint.c (bppy_get_commands): Move ui_out_redirect
	calls outside of the TRY_CATCH block.

gdb/testsuite/
	* gdb.base/ui-redirect.exp: New file.