Fix problem about notimplemented case
Re-revert r64340, and take care about notimplemented case.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64343 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Fix problem about notimplemented case
Re-revert r64340, and take care about notimplemented case.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64343 b2dd03c8-39d4-4d8f-98ff-823fe69b080e