ICU-22908 DRAFT!!! MF2 ICU4J: Update spec tests and update implementation for recent spec changes #3418

Job	Run time
clang-valgrind-intltest (utility)	6m 44s
clang-valgrind-intltest (normalize)	6m 29s
clang-valgrind-test	10m 13s
clang-valgrind-intltest (collator)	6m 15s
clang-valgrind-intltest (regex)	6m 2s
clang-valgrind-intltest (format)	16m 44s
clang-valgrind-intltest (translit)	6m 5s
clang-valgrind-intltest (rbbi)	9m 31s
clang-valgrind-intltest (rbnf)	6m 44s
clang-valgrind-intltest (rbnfrt)	6m 27s
clang-valgrind-intltest (icuserv)	5m 25s
clang-valgrind-intltest (idna)	5m 29s
clang-valgrind-intltest (convert)	7m 2s
clang-valgrind-intltest (rbnfp)	5m 37s
clang-valgrind-intltest (csdet)	5m 23s
clang-valgrind-intltest (spoof)	5m 27s
clang-valgrind-intltest (bidi)	6m 9s
	2h 1m 46s

Provide feedback