Check pos and strlen on Regexp#index(str, pos) [ruby-core:23660]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@24123 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merges r24103 from trunk into ruby_1_9_1.¶
Check pos and strlen on Regexp#index(str, pos) [ruby-core:23660]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@24123 b2dd03c8-39d4-4d8f-98ff-823fe69b080e