It is otherwise impossible to determine which test failed sanitizer/valgrind
check. test/functional/helpers.lua module return was changed so that tests which
do not provide after_each function to get new check will automatically fail.
Problem: Completing the longest match doesn't work properly with multi-byte
characters.
Solution: When using multi-byte characters use another way to find the
longest match. (Hirohito Higashi)
4f8fa1633c
Always run tests with encoding=utf-8, regardless of user locale
Don't set &encoding after startup in tests
Helped-By: Michael Reed <m.reed@mykolab.com>