git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@27822 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merges r27713 and r27715 from trunk into ruby_1_9_2.¶
fiber. [ruby-dev:40833]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@27822 b2dd03c8-39d4-4d8f-98ff-823fe69b080e