* test/ruby/enc/test_case_comprehensive.rb: fix test condition,
add a temporary check for U+A64B, the only character where the tests
currently fail. (Bug #12990)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56924 b2dd03c8-39d4-4d8f-98ff-823fe69b080e