Ruby » Ruby master

Skip unavailable tests

• test/ruby/enc/test_case_comprehensive.rb: noting to test if
  Unicode data files are available.
  [ruby-core:76160] [Bug #12433]
• test/test_unicode_normalize.rb: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55521 b2dd03c8-39d4-4d8f-98ff-823fe69b080e