Use of code points over 0xFF in string bitwise operators

Use of code points over 0xFF in string bitwise operators

Implement complete fatalization.  Some instances of these were fatalized
in 5.28.  However, in cases where the wide characters did not affect the
end result, no deprecation notice was raised.  So they remained legal,
though deprecated.  Now, all occurrences are fatal (as of 5.32).

Modify source code in doop.c.  Adapt test file.  Update perldiag and
perldeprecation.

For:  RT 134140

(Commiter changed a verb to past tense in the pod)