Cherry-pick: ticket:12986: parameterizes long running unit test to split it into shorter unit test runs.

http://bugs.icu-project.org/trac/changeset/40534

Bug: 34988484
Test: com.ibm.icu.dev.test.translit.TransliteratorInstantiateAllTest
Test: com.ibm.icu.dev.test.translit.TransliteratorTest#TestInstantiationError
Change-Id: I12dfeb13074556990717fc233438a36fcdc1d60b
2 files changed