Semi-automate the procedure for updating UCS normalize test bad lines

Semi-automate the procedure for updating UCS normalize test bad lines

* test/lisp/international/ucs-normalize-tests.el: Remove incorrect
commentary describing a manual procedure for producing the updated
failing lines, it did not actually work.  Replace it with pointer to
new function which prints the updated values.
(ucs-normalize-tests--rule1-holds-p): Renamed from
ucs-normalize-tests--invariants-hold-p.
(ucs-normalize-tests--rule2-holds-p): Renamed from
ucs-normalize-tests--invariants-rule2-hold-p.
(ucs-normalize-tests--rule1-failing-for-partX): Renamed from
ucs-normalize-tests--invariants-failing-for-part.
(ucs-normalize-tests--rule1-failing-for-lines): Renamed from
ucs-normalize-tests--invariants-failing-for-lines.
(ucs-normalize-tests--part2-rule1-failed-lines): New variable.
(ucs-normalize-part2): Set it.
(ucs-normalize-part1): Always run through to end of test before
checking for failures.
(ucs-normalize-tests--insert-failing-lines)
(ucs-normalize-check-failing-lines): New functions, used to update
the *--failing-lines-part* variables.