add some more assertions to test_ill_formed_utf_8_replace
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59521 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
add some more assertions to test_ill_formed_utf_8_replace
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59521 b2dd03c8-39d4-4d8f-98ff-823fe69b080e