array.c: check position to insert
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58693 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
array.c: check position to insert
elements to be inserted. [ruby-core:81125] [Bug #13558]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58693 b2dd03c8-39d4-4d8f-98ff-823fe69b080e