git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@25537 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merges r24579 and r24581 from trunk into ruby_1_9_1.¶
[ruby-dev:38701]
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tests for [ruby-dev:38701] and [ruby-core:24463].
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node reducing. [ruby-core:24463]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@25537 b2dd03c8-39d4-4d8f-98ff-823fe69b080e