test/unit.rb: temporary measure againt minitest

* test/lib/test/unit.rb (deal): temporary measure for mixing
  output from the tests of minitest in parallel test.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46940 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
leakchecker.rb: temporary measure againt WEBrick

* test/lib/leakchecker.rb (LeakChecker#find_threads): temporary
  measure for unrestartable WEBrick::Utils::TimeoutHandler::Thread.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46941 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_gem_silent_ui.rb: fix leaked FDs

* lib/rubygems/user_interaction.rb (Gem::StreamUI#close): clean up
  IOs.

* test/rubygems/test_gem_silent_ui.rb (TestGemSilentUI#teardown):
  fix leaked FDs.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46942 b2dd03c8-39d4-4d8f-98ff-823fe69b080e