git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28934 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merges r28877 from trunk into ruby_1_9_2.¶
results when poped is true. [ruby-dev:41933], [Bug #3658]
This is retry of r28870 and r28873 which were reverted.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28934 b2dd03c8-39d4-4d8f-98ff-823fe69b080e