ticket:10842: Fix header test failures, fix no data test errors, and update file properties


git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@35982 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10983 Add failure checks to utext_clone().

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@35985 251d0590-4201-4cf1-90de-194747b24ca1