bug#17951: Subword-mode should support shift selection in and out of cua-mode

[Stefan Monnier <monnier@iro.umontreal.ca>]

>> Subword movement funtions should be specified as
>> (interactive "^p") instead of (interactive "p") to allow shift selection. 

AFAICT this is already the case in 24.3.92 (but yes, it was missing in
24.3).

>> When cua-mode is enabled, shift-selection is also enabled since all the
>> functions have
>> (put 'subword-forward 'CUA 'move)
>> so, I think it should be consistent.

In 24.3.92, cua-mode does not use its own shift-selection implementation
any more, so it is consistent by definition ;-)

You bug report does not say in which version you saw those problems, so
I'll assume it was 24.3 or earlier.  If you still see this problem in
the pretest (24.3.92), then please re-open or make a new report
providing additional details (e.g. indicating which commands are
affected).


        Stefan